<big id="wcbqa"></big>
  1. ...<\/body><\/pre>\n

    除了這些基本標(biāo)籤之外,其他幾個元素可以幫助添加內(nèi)容以創(chuàng)建一個出色的網(wǎng)站。這些是-<\/p>\n

    標(biāo)題:<\/strong>標(biāo)題(H1、H2、H3 等)有助於建構(gòu)內(nèi)容並提供資訊的層次結(jié)構(gòu)。 <\/p>\n

    文法:<\/strong><\/p>\n

    Main Heading<\/h1><\/pre>\n

    段落:<\/strong>段落 (<\/p>\n

    ) 有助於定義文字區(qū)塊。 <\/p>\n

    文法:<\/strong><\/p>\n

    Hello World<\/p><\/pre>\n

    連結(jié):<\/strong>連結(jié) () 允許使用者導(dǎo)航到其他網(wǎng)頁或其他資源。 <\/a><\/p>\n

    文法:<\/strong><\/p>\n

    Link to EDUCBA website<\/a><\/pre>\n

    Images: <\/strong>Images () can provide visual content in a document.<\/p>\n

    Syntax:<\/strong><\/p>\n

    \"Image<\/pre>\n

    Code:<\/strong><\/p>\n

    \n\n\nEDUCBA’s Page<\/title>\n<\/head>\n<body>
    <h1><a href="http://m.miracleart.cn/">国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂</a></h1>\n<p> Hello World! This is EDUCBA’s first web page. <\/p>\n<\/body>\n<\/html><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543755998731.png\" alt=\"什麼是 HTML?\" ><\/p>\n<h3>How to Create an HTML Table?<\/h3>\n<p>There are specific table tags to create a table – mainly, <table>, <th>, <tr>, and <td><strong>. <\/strong><\/p>\n<h4>Pre-requisites for HTML Table<\/h4>\n<p>For an absolute beginner, it is essential to know what the different table tags do before writing a basic code.<\/p>\n<ul>\n<li>\n<strong><table>: <\/strong>Defines a table<\/li>\n<li>\n<strong><tr>:<\/strong> Defines a table row<\/li>\n<li>\n<strong><th>: <\/strong>Defines a table header cell<\/li>\n<li>\n<strong><td>: <\/strong>Defines a table data cell<\/li>\n<\/ul>\n<h3>Student Details Table<\/h3>\n<p>John has to create a webpage showing the names of students in a class along with their marks in mathematics and science. He draws the following table.<\/p>\n<table width=\"624\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"208\"><strong>Name<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"208\"><strong>Mathematics<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"208\"><strong>Science<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Mary<\/td>\n<td width=\"208\">78<\/td>\n<td width=\"208\">92<\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Susan<\/td>\n<td width=\"208\">98<\/td>\n<td width=\"208\">84<\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Amy<\/td>\n<td width=\"208\">63<\/td>\n<td width=\"208\">79<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Now, John wants to write the code to transform this table into an HTML table on a webpage. The steps-<\/p>\n<p><strong>Step #1: <\/strong>Open an HTML code editor. This tutorial demonstrates how to write code in Visual Studio Code. If the PC doesn’t have VS Code, one can download it here.<\/p>\n<p><strong>Step #2: <\/strong>Select File > New Text File.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756191600.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p><strong>Step #3: <\/strong>Click on “Select a language” and then type HTML in the text box. Choose the HTML option to create a new HTML file.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756316296.png\" alt=\"什麼是 HTML?\" ><\/p>\n\n\n<p><strong>Step #4:<\/strong> Again, go to File > Save As and save the file with the filename.html format.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756467690.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756923275.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p><strong>Step #5: <\/strong>Add the basic code, i.e., HTML template of doctype declaration, HTML tag, head tag, title tag, and body tag, as shown below. Set the title as Student Details.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><!DOCTYPE html>\n<html>\n<head>\n<title>Student Details<\/title>\n<\/head>\n<body>\n<\/body>\n<\/html><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757171682.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p>Opening the file should show the following blank web page. Note the title in the browser tab has changed to “Student Details.”<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757391499.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p><strong>Step #6: <\/strong>Now, define the table using the <table> tag inside the body tag. Define the first row using the <tr> tag, and add 3 headings cells – Name, Mathematics, and Science, using the <th> tag. Don’t forget to close the tags with a corresponding closing tag.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><table>\n<tr>\n<th>Name<\/th>\n<th>Mathematics<\/th>\n<th>Science<\/th>\n<\/tr>\n<\/table><\/pre>\n<p>Save the file and refresh the webpage to see the updated output:<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757512582.png\" alt=\"什麼是 HTML?\" ><\/p>\n<p><strong>Step #7: <\/strong>Add the student details by defining a row for each student using <tr> tag, and adding the data in each cell using <td> tag. Close the table with the <\/table> tag.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><tr>\n<td>Mary<\/td>\n<td>78<\/td>\n<td>92<\/td>\n<\/tr>\n<tr>\n<td>Susan<\/td>\n<td>98<\/td>\n<td>84<\/td>\n<\/tr>\n<tr>\n<td>Amy<\/td>\n<td>63<\/td>\n<td>79<\/td>\n<\/tr><\/pre>\n<p>Once again, save and refresh the webpage to see the final output:<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><!DOCTYPE html>\n<html>\n<head>\n<title>Student Details<\/title>\n<\/head>\n<body>\n<table>\n<tr>\n<th>Name<\/th>\n<th>Mathematics<\/th>\n<th>Science<\/th>\n<\/tr>\n<tr>\n<td>Mary<\/td>\n<td>78<\/td>\n<td>92<\/td>\n<\/tr>\n<tr>\n<td>Susan<\/td>\n<td>98<\/td>\n<td>84<\/td>\n<\/tr>\n<tr>\n<td>Amy<\/td>\n<td>63<\/td>\n<td>79<\/td>\n<\/tr>\n<\/table>\n<\/body>\n<\/html><\/pre>\n<h3>Applications of HTML<\/h3>\n<table width=\"691\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"271\"><strong>Application<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"420\"><strong>How Does HTML Help?<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Web pages<\/strong><\/td>\n<td width=\"420\">To create web pages, provide the structure and content for displaying information in a web browser.\n\n\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>E-commerce<\/strong><\/td>\n<td width=\"420\">To create online stores, product catalogs, and shopping carts, allowing customers to purchase products and services online.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Landing pages<\/strong><\/td>\n<td width=\"420\">To develop compelling landing pages for websites that capture a visitor’s attention and encourage them to take a specific action.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Newsletters<\/strong><\/td>\n<td width=\"420\">It allows the creation of interactive and visually appealing newsletters, such as corporate newsletters, that deliver to subscribers via email.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Online portfolios<\/strong><\/td>\n<td width=\"420\">To create online portfolios for artists, photographers, and other creatives, showcasing their work and skills to potential clients and employers.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Blogs<\/strong><\/td>\n<td width=\"420\">One can create blogs, which are personal websites that provide a platform for writing and publishing articles and other content.<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Documentation<\/strong><\/td>\n<td width=\"420\">It helps to create documentation and help files, providing information and guidance to users of the software and other products.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Advertisements<\/strong><\/td>\n<td width=\"420\">It can help make advertisements embedded on websites and social media platforms, promoting products and services to a wide audience.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Forms<\/strong><\/td>\n<td width=\"420\">To create a form, one can use <form> elements.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Advantages and Disadvantages<\/h3>\n<table style=\"height: 471px;\" width=\"685\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"301\"><strong>Pros<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"299\"><strong>Cons<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Open Standard:<\/strong> It is free of cost and readily available.<\/td>\n<td width=\"299\">\n<strong>Limited Functionality: <\/strong>It cannot perform complex tasks like calculations or data storage.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Easy to Learn:<\/strong> HTML tags are basic and in a readable format, enclosed in angle brackets. It’s easy to learn and use, even for non-programmers.<\/td>\n<td width=\"299\">\n<strong>Poor Security: <\/strong>It is vulnerable to security threats such as cross-site scripting (XSS) and SQL injection.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Search Engine Friendly: <\/strong>Search engines can easily crawl and index the content of the pages.<\/td>\n<td width=\"299\">\n<strong>Inconsistent Browsers: <\/strong>Different browsers render HTML differently, leading to an inconsistent display of web pages on different browsers.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Community Support: <\/strong>It has large community support and many online resources available for learning and troubleshooting.<\/td>\n<td width=\"299\">\n<strong>Poor Design Flexibility:<\/strong> It provides limited design options and creates static websites, making it difficult to create visually appealing dynamic websites without integrating CSS and JavaScript.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Final Thoughts<\/h3>\n<p>In conclusion, Hypertext Markup Language is a cornerstone of the World Wide Web. It provides a standardized way of defining the structure and content of a web page using a combination of tags and attributes. With HTML, one can create simple text-based web pages or complex, multimedia-rich applications. It is easy to learn and widely used, making it an essential skill for anyone interested in web development.<\/p>\n<h3>FAQs<\/h3>\n<h4>Q1. How to convert an HTML to PDF?<\/h4>\n<p><strong>Answer: <\/strong>To convert, use a library or online service that supports HTML to PDF conversion.<\/p>\n<h4>Q2. How to add an image in HTML?<\/h4>\n<p><strong>Answer: <\/strong>To add an image, use the <img> tag with the src attribute pointing to the image file’s URL or local path. Example:<\/p>\n<pre><img src=\"image.jpg\" alt=\"Alt text\"><\/pre>\n<h4>Q3. Is HTML a programming language? What is the HTML used for?<\/h4>\n<p><strong>Answer:<\/strong> Hypertext Markup Language is not a programming language, it is a markup language used for creating web pages and other information displayed in a web browser. HTML defines the structure and content of a web page using a set of markup tags.<\/p>\n<h4>Q4. How to add a video in HTML?<\/h4>\n<p><strong>Answer: <\/strong>To add a video, use the <video> tag with the src attribute pointing to the video file’s URL or local path. Example:<\/p>\n<pre><video src=\"video.mp4\"><\/video><\/pre>\n<p>One can also add controls to play, pause, and adjust volume with the controls attribute:<\/p>\n<pre><video src=\"video.mp4\" controls><\/video><\/pre>\n<h4>Q5. Is HTML case-sensitive?<\/h4>\n<p><strong>Answer: <\/strong>No, elements are not case-sensitive. However, as best practice, it’s good to follow the same casing in all tags or elements to improve code readability.<\/p>\n<h4>Q6. How many tags are in HTML?<\/h4>\n<p><strong>Answer: <\/strong>There are over 140 tags specified in the HTML5 standard, but some of them have become obsolete and are not widely used. Commonly used tags include headings, paragraphs, links, images, lists, tables, forms, and multimedia elements like audio and video.<\/p>\n<h4>Q7. What is HTML doctype?<\/h4>\n<p><strong>Answer: <\/strong>The first line of a document is the doctype or document type declaration, which defines the version of the HTML used. Example:<\/p>\n<pre><!DOCTYPE html><\/pre>\n<h4>?Q8. What is an HTML header?<\/h4>\n<p><strong>Answer: <\/strong>The HTML <header> tag defines a header section in a document. This section typically contains information such as the page title, logo, and navigation menu. The header section is usually displayed at the top of the page, and its content is typically shared across multiple pages of a website. The header tag helps to define the structure and hierarchy of a web page and makes it easier to create a consistent look and feel across multiple pages.<\/p>"}	</script>
    	
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    									<a href="#How-to-Create-an-HTML-Table" title="How to Create an HTML Table?" >How to Create an HTML Table?</a>
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    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Pre-requisites-for-HTML-Table" title="Pre-requisites for HTML Table" >Pre-requisites for HTML Table</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Student-Details-Table" title="Student Details Table" >Student Details Table</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Applications-of-HTML" title="Applications of HTML" >Applications of HTML</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Advantages-and-Disadvantages" title="Advantages and Disadvantages" >Advantages and Disadvantages</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Final-Thoughts" title="Final Thoughts" >Final Thoughts</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#FAQs" title="FAQs" >FAQs</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-How-to-convert-an-HTML-to-PDF" title="Q1. How to convert an HTML to PDF?" >Q1. How to convert an HTML to PDF?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-How-to-add-an-image-in-HTML" title="Q2. How to add an image in HTML?" >Q2. How to add an image in HTML?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-Is-HTML-a-programming-language-What-is-the-HTML-used-for" title="Q3. Is HTML a programming language? What is the HTML used for?" >Q3. Is HTML a programming language? What is the HTML used for?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-How-to-add-a-video-in-HTML" title="Q4. How to add a video in HTML?" >Q4. How to add a video in HTML?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-Is-HTML-case-sensitive" title="Q5. Is HTML case-sensitive?" >Q5. Is HTML case-sensitive?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-How-many-tags-are-in-HTML" title="Q6. How many tags are in HTML?" >Q6. How many tags are in HTML?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-What-is-HTML-doctype" title="Q7. What is HTML doctype?" >Q7. What is HTML doctype?</a>
    								</div>
    																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
    									<a href="#Q-What-is-an-HTML-header" title="?Q8. What is an HTML header?" >?Q8. What is an HTML header?</a>
    								</div>
    														</div>
    					</div>
    				</div>
    							<div   id="377j5v51b"   class="Article_Details_main1M">
    					<div   id="377j5v51b"   class="phpgenera_Details_mainL1">
    						<a href="http://m.miracleart.cn/zh-tw/" title="首頁"
    							class="phpgenera_Details_mainL1a">首頁</a>
    						<img src="/static/imghw/top_right.png" alt="" />
    												<a href="http://m.miracleart.cn/zh-tw/web-designer.html"
    							class="phpgenera_Details_mainL1a">web前端</a>
    						<img src="/static/imghw/top_right.png" alt="" />
    												<a href="http://m.miracleart.cn/zh-tw/div-tutorial.html"
    							class="phpgenera_Details_mainL1a">html教學(xué)</a>
    						<img src="/static/imghw/top_right.png" alt="" />
    						<span>什麼是 HTML?</span>
    					</div>
    					
    					<div   id="377j5v51b"   class="Articlelist_txts">
    						<div   id="377j5v51b"   class="Articlelist_txts_info">
    							<h1 class="Articlelist_txts_title">什麼是 HTML?</h1>
    							<div   id="377j5v51b"   class="Articlelist_txts_info_head">
    								<div   id="377j5v51b"   class="author_info">
    									<a href="http://m.miracleart.cn/zh-tw/member/887227.html"  class="author_avatar">
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    									</a>
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    																			<a href="http://m.miracleart.cn/zh-tw/member/887227.html" class="author_name">WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB</a>
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    								</div>
                    			</div>
    							<span id="377j5v51b"    class="Articlelist_txts_time">Sep 04, 2024 pm	 04:12 PM</span>
    															<div   id="377j5v51b"   class="Articlelist_txts_infos">
    																			<span id="377j5v51b"    class="Articlelist_txts_infoss on">html</span>
    																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">html5</span>
    																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML Tutorial</span>
    																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML Properties</span>
    																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML tags</span>
    																	</div>
    														
    						</div>
    					</div>
    					<hr />
    					<div   id="377j5v51b"   class="article_main php-article">
    						<div   id="377j5v51b"   class="article-list-left detail-content-wrap content">
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    					<blockquote><p><em>超文本標(biāo)記語言(HTML)是一種允許創(chuàng)建任何連接到互聯(lián)網(wǎng)的人都可以查看的網(wǎng)站的語言。?根據(jù)一項調(diào)查,超過 55% 的受訪者表示他們使用 HTML。 </em></p></blockquote>
    <p>此外,學(xué)習(xí) HTML 通常是任何 Web 開發(fā)人員旅程的第一步。 Web 開發(fā)人員的平均年收入為 61,718 美元,頂級開發(fā)人員的年收入突破了 103,000 美元大關(guān)。 </p>
    <p>超文本是一種透過點(diǎn)擊稱為超連結(jié)的文字進(jìn)入下一頁的上網(wǎng)方式。 </p>
    <p><img  src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172543755222677.jpg" class="lazy" alt="什麼是 HTML?" ></p>
    
    
    
    
    
    
    
    
    
    
    
    
    
    <h3 id="要點(diǎn)">要點(diǎn)</h3>
    <ul>
    <li>基本程式碼由 doctype 宣告、HTML 標(biāo)籤、head 標(biāo)籤、title 標(biāo)籤和 body 標(biāo)籤組成。 </li>
    <li>它可以在任何作業(yè)系統(tǒng)(例如 Windows、Mac 和 Linux)以及任何瀏覽器(例如?? Google Chrome、Mozilla Firefox 和 Safari)上運(yùn)行。 </li>
    <li>它還有各種應(yīng)用程序,例如創(chuàng)建個人部落格、詳細(xì)資料表、註冊表、登陸頁面、新聞通訊和線上作品集。 </li>
    <li>優(yōu)點(diǎn)是它是一個開放標(biāo)準(zhǔn),易於學(xué)習(xí),適合初學(xué)者,具有良好的社區(qū)支持,並且對搜尋引擎友好。 </li>
    <li>缺點(diǎn)包括安全性差、缺乏設(shè)計彈性、在各種瀏覽器上輸出不一致、功能有限。 </li>
    </ul>
    <h3 id="HTML-子集">HTML 子集</h3>
    <h4 id="XHTML-可擴(kuò)充超文本標(biāo)記語言">1. XHTML(可擴(kuò)充超文本標(biāo)記語言)</h4>
    <ul>
    <li>XHTML 是一種基於 XML 的標(biāo)記語言,這意味著它遵循嚴(yán)格的語法和語義規(guī)則。 </li>
    <li>XHTML 是 HTML 4 的繼承者,旨在使語言更加模組化和可擴(kuò)展。 </li>
    <li>XHTML 文件必須格式正確且有效,這使得它們更難以創(chuàng)建,並且更加一致且可供更廣泛的設(shè)備存取。 </li>
    </ul>
    <h4 id="SGML-標(biāo)準(zhǔn)通用標(biāo)記語言">2. SGML(標(biāo)準(zhǔn)通用標(biāo)記語言)</h4>
    <ul>
    <li>SGML 是一種用來定義標(biāo)記語言(包括 HTML)的元語言。 </li>
    <li>SGML 提供了描述文件結(jié)構(gòu)和內(nèi)容的標(biāo)準(zhǔn)語法,使其對於在不同系統(tǒng)之間交換資訊非常有用。 </li>
    <li>SGML 是一個複雜且強(qiáng)大的系統(tǒng),但其語法和複雜性使其不如 HTML 等簡單標(biāo)記語言廣泛使用。 </li>
    </ul>
    <h4 id="DHTML-動態(tài)-HTML">3. DHTML(動態(tài) HTML)</h4>
    <ul>
    <li>DHTML 是指使用 HTML、CSS 和 JavaScript 建立動態(tài)、互動式網(wǎng)頁。 </li>
    <li>DHTML 允許操作網(wǎng)頁的內(nèi)容、版面配置和行為以回應(yīng)使用者操作,而無需重新整理頁面。 </li>
    <li>DHTML 廣泛用於建立動態(tài)效果,例如下拉式選單、工具提示和幻燈片放映。 </li>
    <li>它還可以創(chuàng)建簡單的動畫和遊戲。 </li>
    </ul>
    <h4 id="TTML-定時文字標(biāo)記語言">4. TTML2(定時文字標(biāo)記語言 2)</h4>
    <ul>
    <li>TTML2 是一種標(biāo)記語言,用於以標(biāo)準(zhǔn)化方式表示定時文字內(nèi)容,例如字幕和副標(biāo)題。 </li>
    <li>TTML2 提供了一套全面的功能,用於設(shè)定定時文字的格式和樣式,包括對多種語言和字體樣式的支援。 </li>
    <li>TTML2 是確保聾啞和聽力障礙使用者可存取多媒體內(nèi)容以及提高所有使用者影片內(nèi)容可用性的重要工具。 </li>
    </ul>
    <h3 id="HTML-範(fàn)本">HTML 範(fàn)本</h3>
    <p>每個 HTML 頁面都有一個基本模板。它由以下部分組成:</p>
    <p><strong>文件類型聲明:</strong>HTML 文件的第一行是 doctype 或文件類型聲明,它定義了所使用的 HTML 版本。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><!DOCTYPE html></pre>
    <p><strong>Element</strong>:該元素是 HTML 文件的根元素,包含所有其他元素。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><html>...</html></pre>
    <p><strong>Head 元素:</strong>head 元素包含有關(guān)文件的信息,例如標(biāo)題、元資料以及指向外部資源(例如樣式表)的連結(jié)。 </p>
    <p><strong>文法:</strong></p>
    
    
    <pre class="brush:php;toolbar:false"><head>...</head></pre>
    <p><strong>Title 元素:</strong>title 元素定義文件的標(biāo)題,該標(biāo)題顯示在瀏覽器的標(biāo)題列中。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><title>Name of Web Page</title></pre>
    <p><strong>Body元素:</strong>body元素包含文件的主要內(nèi)容,包括文字、圖像和其他媒體。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><body>...</body></pre>
    <p>除了這些基本標(biāo)籤之外,其他幾個元素可以幫助添加內(nèi)容以創(chuàng)建一個出色的網(wǎng)站。這些是-</p>
    <p><strong>標(biāo)題:</strong>標(biāo)題(H1、H2、H3 等)有助於建構(gòu)內(nèi)容並提供資訊的層次結(jié)構(gòu)。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><h1>Main Heading</h1></pre>
    <p><strong>段落:</strong>段落 (</p>
    <p>) 有助於定義文字區(qū)塊。 </p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><p>Hello World</p></pre>
    <p><strong>連結(jié):</strong>連結(jié) (<a>) 允許使用者導(dǎo)航到其他網(wǎng)頁或其他資源。 </a></p>
    <p><strong>文法:</strong></p>
    <pre class="brush:php;toolbar:false"><a href="https://www.EDUCBA.com">Link to EDUCBA website</a></pre>
    <p><strong>Images: </strong>Images (<img>) can provide visual content in a document.</p>
    <p><strong>Syntax:</strong></p>
    <pre class="brush:php;toolbar:false"><img src="image.jpg" alt="Image Description"></pre>
    <p><strong>Code:</strong></p>
    <pre class="brush:php;toolbar:false"><!DOCTYPE html>
    <html>
    <head>
    <title>EDUCBA’s Page
    
    
    

    Hello World! This is EDUCBA’s first web page.

    Output:

    什麼是 HTML?

    How to Create an HTML Table?

    There are specific table tags to create a table – mainly,

    , , and
    ,
    .

    Pre-requisites for HTML Table

    For an absolute beginner, it is essential to know what the different table tags do before writing a basic code.

    • : Defines a table
    • : Defines a table row
    • <big id="8yic4"><tbody id="8yic4"><fieldset id="8yic4"></fieldset></tbody></big>

          : Defines a table header cell
        1. : Defines a table data cell

          Student Details Table

          John has to create a webpage showing the names of students in a class along with their marks in mathematics and science. He draws the following table.

          Name Mathematics Science
          Mary 78 92
          Susan 98 84
          Amy 63 79

          Now, John wants to write the code to transform this table into an HTML table on a webpage. The steps-

          Step #1: Open an HTML code editor. This tutorial demonstrates how to write code in Visual Studio Code. If the PC doesn’t have VS Code, one can download it here.

          Step #2: Select File > New Text File.

          什麼是 HTML?

          Step #3: Click on “Select a language” and then type HTML in the text box. Choose the HTML option to create a new HTML file.

          什麼是 HTML?

          Step #4: Again, go to File > Save As and save the file with the filename.html format.

          什麼是 HTML?

          什麼是 HTML?

          Step #5: Add the basic code, i.e., HTML template of doctype declaration, HTML tag, head tag, title tag, and body tag, as shown below. Set the title as Student Details.

          Code:

          <!DOCTYPE html>
          
          
          Student Details
          
          
          
          

          Output:

          什麼是 HTML?

          Opening the file should show the following blank web page. Note the title in the browser tab has changed to “Student Details.”

          什麼是 HTML?

          Step #6: Now, define the table using the

          tag inside the body tag. Define the first row using the tag, and add 3 headings cells – Name, Mathematics, and Science, using the tag, and adding the data in each cell using
          tag. Don’t forget to close the tags with a corresponding closing tag.

          Code:

          <table>
          <tr>
          <th>Name</th>
          <th>Mathematics</th>
          <th>Science</th>
          </tr>
          </table>

          Save the file and refresh the webpage to see the updated output:

          什麼是 HTML?

          Step #7: Add the student details by defining a row for each student using

          tag. Close the table with the
          tag.

          Code:

          <tr>
          <td>Mary</td>
          <td>78</td>
          <td>92</td>
          </tr>
          <tr>
          <td>Susan</td>
          <td>98</td>
          <td>84</td>
          </tr>
          <tr>
          <td>Amy</td>
          <td>63</td>
          <td>79</td>
          </tr>

          Once again, save and refresh the webpage to see the final output:

          Code:

          <!DOCTYPE html>
          
          
          Student Details
          
          
          
          <tr>
          <td>Mary</td>
          <td>78</td>
          <td>92</td>
          </tr>
          <tr>
          <td>Susan</td>
          <td>98</td>
          <td>84</td>
          </tr>
          <tr>
          <td>Amy</td>
          <td>63</td>
          <td>79</td>
          </tr>
          
          Name Mathematics Science

          Applications of HTML

          Application How Does HTML Help?
          Web pages To create web pages, provide the structure and content for displaying information in a web browser.

          ?

          E-commerce To create online stores, product catalogs, and shopping carts, allowing customers to purchase products and services online.

          ?

          Landing pages To develop compelling landing pages for websites that capture a visitor’s attention and encourage them to take a specific action.

          ?

          Newsletters It allows the creation of interactive and visually appealing newsletters, such as corporate newsletters, that deliver to subscribers via email.

          ?

          Online portfolios To create online portfolios for artists, photographers, and other creatives, showcasing their work and skills to potential clients and employers.

          ?

          Blogs One can create blogs, which are personal websites that provide a platform for writing and publishing articles and other content.
          Documentation It helps to create documentation and help files, providing information and guidance to users of the software and other products.

          ?

          Advertisements It can help make advertisements embedded on websites and social media platforms, promoting products and services to a wide audience.

          ?

          Forms To create a form, one can use
          elements.

          ?

          Advantages and Disadvantages

          Pros Cons
          Open Standard: It is free of cost and readily available. Limited Functionality: It cannot perform complex tasks like calculations or data storage.
          Easy to Learn: HTML tags are basic and in a readable format, enclosed in angle brackets. It’s easy to learn and use, even for non-programmers. Poor Security: It is vulnerable to security threats such as cross-site scripting (XSS) and SQL injection.
          Search Engine Friendly: Search engines can easily crawl and index the content of the pages. Inconsistent Browsers: Different browsers render HTML differently, leading to an inconsistent display of web pages on different browsers.
          Community Support: It has large community support and many online resources available for learning and troubleshooting. Poor Design Flexibility: It provides limited design options and creates static websites, making it difficult to create visually appealing dynamic websites without integrating CSS and JavaScript.

          Final Thoughts

          In conclusion, Hypertext Markup Language is a cornerstone of the World Wide Web. It provides a standardized way of defining the structure and content of a web page using a combination of tags and attributes. With HTML, one can create simple text-based web pages or complex, multimedia-rich applications. It is easy to learn and widely used, making it an essential skill for anyone interested in web development.

          FAQs

          Q1. How to convert an HTML to PDF?

          Answer: To convert, use a library or online service that supports HTML to PDF conversion.

          Q2. How to add an image in HTML?

          Answer: To add an image, use the tag with the src attribute pointing to the image file’s URL or local path. Example:

          <img src="image.jpg" alt="Alt text">

          Q3. Is HTML a programming language? What is the HTML used for?

          Answer: Hypertext Markup Language is not a programming language, it is a markup language used for creating web pages and other information displayed in a web browser. HTML defines the structure and content of a web page using a set of markup tags.

          Q4. How to add a video in HTML?

          Answer: To add a video, use the

          <video src="video.mp4"></video>

          One can also add controls to play, pause, and adjust volume with the controls attribute:

          <video src="video.mp4" controls></video>

          Q5. Is HTML case-sensitive?

          Answer: No, elements are not case-sensitive. However, as best practice, it’s good to follow the same casing in all tags or elements to improve code readability.

          Q6. How many tags are in HTML?

          Answer: There are over 140 tags specified in the HTML5 standard, but some of them have become obsolete and are not widely used. Commonly used tags include headings, paragraphs, links, images, lists, tables, forms, and multimedia elements like audio and video.

          Q7. What is HTML doctype?

          Answer: The first line of a document is the doctype or document type declaration, which defines the version of the HTML used. Example:

          <!DOCTYPE html>

          ?Q8. What is an HTML header?

          Answer: The HTML

          tag defines a header section in a document. This section typically contains information such as the page title, logo, and navigation menu. The header section is usually displayed at the top of the page, and its content is typically shared across multiple pages of a website. The header tag helps to define the structure and hierarchy of a web page and makes it easier to create a consistent look and feel across multiple pages.

          以上是什麼是 HTML?的詳細(xì)內(nèi)容。更多資訊請關(guān)注PHP中文網(wǎng)其他相關(guān)文章!

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          '`vs.` `在html中 '`vs.` `在html中 Jul 19, 2025 am 12:41 AM

          是塊級元素,用於劃分大塊內(nèi)容區(qū)域;是內(nèi)聯(lián)元素,適合包裹小段文字或內(nèi)容片段。具體區(qū)別如下:1.獨(dú)占一行,可設(shè)置寬高、內(nèi)外邊距,常用於佈局結(jié)構(gòu)如頭部、側(cè)邊欄等;2.不換行,僅佔(zhàn)據(jù)內(nèi)容寬度,用於局部樣式控制如變色、加粗等;3.使用場景上,適用於整體區(qū)域的排版與結(jié)構(gòu)組織,而用於不影響整體佈局的小範(fàn)圍樣式調(diào)整;4.嵌套時,可包含任何元素,而內(nèi)部不應(yīng)嵌套塊級元素。

          如何在HTML5中使用無線電按鈕? 如何在HTML5中使用無線電按鈕? Jul 21, 2025 am 01:08 AM

          在HTML5中使用單選按鈕的關(guān)鍵在於理解其工作原理並正確組織代碼結(jié)構(gòu)。 1.每個radio按鈕的name屬性必須相同,以實(shí)現(xiàn)互斥選擇;2.使用label標(biāo)籤提升可訪問性和點(diǎn)擊體驗;3.推薦將每個選項包裹在div或label中以增強(qiáng)結(jié)構(gòu)清晰度和樣式控制;4.通過checked屬性設(shè)置默認(rèn)選中項;5.value值應(yīng)簡潔有意義,便於表單提交處理;6.可通過CSS自定義樣式,但需確保功能正常。掌握這些要點(diǎn)能有效避免常見問題並提升使用效果。

          HTML5中是否仍在使用標(biāo)籤? HTML5中是否仍在使用標(biāo)籤? Jul 21, 2025 am 02:47 AM

          是的,是HTML5的一部分,但其使用已逐漸減少且存在爭議。用於將主標(biāo)題與副標(biāo)題組合在一起,使文檔大綱中僅識別最高級別的標(biāo)題;例如,主標(biāo)題和副標(biāo)題可被包裹在中,以表明僅為輔助標(biāo)題而非獨(dú)立章節(jié)標(biāo)題;然而,其不再廣泛使用的原因包括:1.瀏覽器和屏幕閱讀器對其支持不一致,2.存在更簡單的替代方案如使用CSS控製樣式,3.HTML文檔大綱算法未被廣泛支持;儘管如此,在語義要求較高的網(wǎng)站或文檔中仍可考慮使用;而大多數(shù)情況下,開發(fā)者傾向使用單一、通過CSS管理樣式並保持清晰的標(biāo)題層級。

          影子dom概念和HTML集成 影子dom概念和HTML集成 Jul 24, 2025 am 01:39 AM

          ShadowDOM是Web組件技術(shù)中用於創(chuàng)建隔離DOM子樹的技術(shù)。 1.它允許在普通HTML元素上掛載獨(dú)立的DOM結(jié)構(gòu),擁有自己的樣式和行為,不與主文檔互相影響;2.通過JavaScript創(chuàng)建,例如使用attachShadow方法並設(shè)置mode為open;3.結(jié)合HTML使用時具備結(jié)構(gòu)清晰、樣式隔離和內(nèi)容投影(slot)三大特點(diǎn);4.注意事項包括調(diào)試複雜、樣式作用域控制、性能開銷及框架兼容性問題??傊?,ShadowDOM提供了原生封裝能力,適用於構(gòu)建可複用且不污染全局的UI組件。

          您可以在另一個標(biāo)籤中放置一個標(biāo)籤嗎? 您可以在另一個標(biāo)籤中放置一個標(biāo)籤嗎? Jul 27, 2025 am 04:15 AM

          ?Youcannotnesttagsinsideanothertagbecauseit’sinvalidHTML;browsersautomaticallyclosethefirstbeforeopeningthenext,resultinginseparateparagraphs.?Instead,useinlineelementslike,,orforstylingwithinaparagraph,orblockcontainerslikeortogroupmultipleparagraph

          初學(xué)者的基本HTML標(biāo)籤 初學(xué)者的基本HTML標(biāo)籤 Jul 27, 2025 am 03:45 AM

          要快速入門HTML,只需掌握幾個基礎(chǔ)標(biāo)籤即可搭建網(wǎng)頁骨架。 1.頁面結(jié)構(gòu)必備、和,其中是根元素,包含元信息,是內(nèi)容展示區(qū)域。 2.標(biāo)題使用到,級別越高數(shù)字越小,正文用標(biāo)籤分段,避免跳級使用。 3.鏈接使用標(biāo)籤並配合href屬性,圖片使用標(biāo)籤並包含src和alt屬性。 4.列表分為無序列表和有序列表,每個條目用表示且必須嵌套在列表中。 5.初學(xué)者不必強(qiáng)記所有標(biāo)籤,邊寫邊查更高效,掌握結(jié)構(gòu)、文本、鏈接、圖片和列表即可製作基礎(chǔ)網(wǎng)頁。

          為什麼我的圖像未顯示在HTML中? 為什麼我的圖像未顯示在HTML中? Jul 28, 2025 am 02:08 AM

          圖像未顯示通常因文件路徑錯誤、文件名或擴(kuò)展名不正確、HTML語法問題或瀏覽器緩存導(dǎo)致。 1.確保src路徑與文件實(shí)際位置一致,使用正確的相對路徑;2.檢查文件名大小寫及擴(kuò)展名是否完全匹配,並通過直接輸入URL驗證圖片能否加載;3.核對img標(biāo)籤語法是否正確,確保無多餘字符且alt屬性值恰當(dāng);4.嘗試強(qiáng)制刷新頁面、清除緩存或使用隱身模式排除緩存干擾。按此順序排查可解決大多數(shù)HTML圖片顯示問題。

          html中的``optGroup`標(biāo)籤'' html中的``optGroup`標(biāo)籤'' Jul 19, 2025 am 02:01 AM

          在HTML表單中,使用標(biāo)籤可將下拉菜單中的選項進(jìn)行分組展示,以提升可讀性和用戶體驗。 1.是元素下的一個標(biāo)籤,用於將多個分組,並通過label屬性定義組名;2.使用時需將其置於內(nèi)部並嵌套,且每個必須有l(wèi)abel屬性;3.注意事項包括不能嵌套、可通過disabled屬性禁用整組選項、可使用CSS自定義樣式以及需考慮無障礙訪問支持;4.適用場景包括多分類數(shù)據(jù)選擇、選項較多需視覺分層或存在邏輯層級關(guān)係的情況。合理使用可有效提升表單交互體驗。

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