Explanation<\/p>\n\n
Document Type and Language Declaration:
\n<\/p>\n\n
\n<\/pre>\n\n\n\nTells the browser that this is an HTML5 document.
\n<\/p>\n\n\n<\/pre>\n\n\n\nBegins the HTML document and specifies English as the language. This helps search engines and screen readers understand the language of the document.<\/p>\n\n
Head Section:
\n<\/p>\n\n\n<\/pre>\n\n\n\nContains metadata and links significant to the document but not visible to the user.
\n<\/p>\n\n\n<\/pre>\n\n\n\nSets the character encoding, ensuring compatibility with most languages.
\n<\/p>\n\n\n<\/pre>\n\n\n\nMakes the page responsive by adjusting its layout to fit different devices.
\n<\/p>\n\nCalculator<\/title>\n<\/pre>\n\n\n\n<p>Sets the title displayed on the browser tab.<br>\n<\/p><pre>\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Calculator<\/title>\n <link rel=\"stylesheet\" href=\"style.css\">\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 <div>\n\n\n\n<p>Explanation<\/p>\n\n<p>Document Type and Language Declaration:<br>\n<\/p>\n\n<pre><!DOCTYPE html>\n<\/pre>\n\n\n\n<p>Links to the CSS file where styles are defined.<\/p>\n\n<p>Calculator Layout:<br>\n<\/p>\n\n<pre><html lang=\"en\">\n<\/pre>\n\n\n\n<p>Links to the JavaScript file that handles the calculator’s functionality.<\/p>\n\n<p>STEP 2: CSS STYLING - DESIGNING THE CALCULATOR INTERFACE<\/p>\n\n<p>Now that we have the structure, let’s move to the styling. This CSS code will make the calculator look more modern, adding colors, rounded buttons, shadows, and responsive layout adjustments.<br>\n<\/p>\n\n<pre><head>\n<\/pre>\n\n\n\n<p>Explanation<\/p>\n\n<p>Basic Reset and Font:<br>\n<\/p>\n\n<pre><meta charset=\"UTF-8\">\n<\/pre>\n\n\n\n<p>Removes default padding and margins, sets box-sizing to border-box for consistent sizing, and applies a modern font.<\/p>\n\n<p>Body Styling:<\/p>\n\n<p>body: Uses Flexbox to center the calculator container in the middle of the screen and applies a gradient background.<\/p>\n\n<p>Calculator Container:<\/p>\n\n<p>.calculator: Adds padding, rounded corners, and a shadow for a neat, card-like appearance.<\/p>\n\n<p>Display Input:<\/p>\n\n<p>input: This styling gives the display area a large font size and right alignment, resembling a real calculator display.<\/p>\n\n<p>Button Styling:<\/p>\n\n<p>.calculator button: Sets up a circular button with a shadow effect, white text color, and spacing for alignment.<\/p>\n\n<p>.actionbtn, .clearbtn, and .enter: Styles for specific buttons to make them stand out (e.g., green for operators, red for clear, and orange for equal).<\/p>\n\n<p>STEP 3: THIS IS WHERE ALL THE JAVASCRIPT LOGIC HAPPENS - MAKING THE CALCULATOR FUNCTIONAL<\/p>\n\n<p>With structure and style well accomplished, lets add a functionality using JavaScript. This script allows us to handle click on buttons, perform arithmetic, and display results.<br>\n<\/p>\n\n<pre><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n<\/pre>\n\n\n\n<p>Explanation<\/p>\n\n<p>Event Listener for Page Load:<br>\n<\/p>\n\n<pre><title>Calculator<\/title>\n<\/pre>\n\n\n\n<p>Ensures the script runs after all HTML content is loaded.<\/p>\n\n<p>Input and Button Variables:<br>\n<\/p>\n\n<pre><link rel=\"stylesheet\" href=\"style.css\">\n<\/pre>\n\n\n\n<p>Selects the display area.<br>\n<\/p>\n\n<pre><div>\n\n\n\n<p>Wraps the entire calculator interface. We’ll apply styles to this container to make it look like a calculator.<br>\n<\/p>\n\n<pre><input type=\"text\" placeholder=\"0\">\n\n\n\n<p>This is the display area of the calculator, where we show the current number or result. It is disabled, so users can’t type directly.<\/p>\n\n<p>Buttons:<br>\n<\/p>\n\n<pre><button>\n\n\n\n<p>Clears the calculator display and resets the current calculation.<br>\n<\/p>\n\n<pre><button>\n\n\n\n<p>Deletes the last entered character.<br>\n<\/p>\n\n<pre><button>\n\n\n\n<p>Toggles between positive and negative values.<br>\n<\/p>\n\n<pre><button>\n\n\n\n<p>The division operator.<\/p>\n\n<p>Remaining button elements represent numbers (0–9), operators (+, -, *, \/), and a decimal point (.). 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<div style="display: block;" id="login" class="haed_login "> <a href="javascript:;" title="Login" class="haed_logina ">Login</a> </div> <div style="display: block;" id="reg" class="head_signup login"> <a href="javascript:;" title="singup" class="head_signupa">singup</a> </div> </div> </div> </header> <main> <div id="377j5v51b" class="Article_Details_main"> <div id="377j5v51b" class="Article_Details_main1"> <div id="377j5v51b" class="Article_Details_main1M"> <div id="377j5v51b" class="phpgenera_Details_mainL1"> <a href="http://m.miracleart.cn/" title="Home" class="phpgenera_Details_mainL1a">Home</a> <img src="/static/imghw/top_right.png" alt="" /> <a href="http://m.miracleart.cn/web-designer.html" class="phpgenera_Details_mainL1a">Web Front-end</a> <img src="/static/imghw/top_right.png" alt="" /> <a href="http://m.miracleart.cn/css-tutorial.html" class="phpgenera_Details_mainL1a">CSS Tutorial</a> <img src="/static/imghw/top_right.png" alt="" /> <span>BUILDING A SIMPLE WEB-BASED CALCULATOR: Step-by-step Guild with Html CSS And JavaScript</span> </div> <div id="377j5v51b" class="Articlelist_txts"> <div id="377j5v51b" class="Articlelist_txts_info"> <h1 class="Articlelist_txts_title">BUILDING A SIMPLE WEB-BASED CALCULATOR: Step-by-step Guild with Html CSS And JavaScript</h1> <div id="377j5v51b" class="Articlelist_txts_info_head"> <div id="377j5v51b" class="author_info"> <a href="http://m.miracleart.cn/member/1468491.html" class="author_avatar"> <img class="lazy" data-src="https://img.php.cn/upload/avatar/000/000/001/66ea815b78d13863.png" src="/static/imghw/default1.png" alt="Patricia Arquette"> </a> <div id="377j5v51b" class="author_detail"> <a href="http://m.miracleart.cn/member/1468491.html" class="author_name">Patricia Arquette</a> </div> </div> </div> <span id="377j5v51b" class="Articlelist_txts_time">Nov 11, 2024 pm 02:20 PM</span> </div> </div> <hr /> <div id="377j5v51b" class="article_main php-article"> <div id="377j5v51b" class="article-list-left detail-content-wrap content"> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3461856641"> </ins> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173130600787793.jpg" class="lazy" alt="BUILDING A SIMPLE WEB-BASED CALCULATOR: Step-by-step Guild with Html CSS And JavaScript"></p> <p>Creating a calculator web application is a fantastic project for learning HTML, CSS, and JavaScript. Even though calculators are commonplace or rather ordinary , building one from scratch helps beginners understand fundamental concepts of web development—such as structuring content with HTML, styling elements with CSS, and adding interactive functionality with JavaScript.</p> <p>In this overview, we’ll walk through every part of the code needed to create a fully functional calculator. This guide will not only provide the code but will also explain each line in detail, ensuring you understand how everything fits together. By the end of this project, you’ll have a smooth, interactive calculator that you can personalize or even expand upon with more advanced features.</p> <p>The Calculator’s Features<br> This calculator includes basic functionality:</p> <p>A display area to show the current input and results.</p> <p>Number buttons (0–9) and an additional "00" button.</p> <p>Arithmetic operation buttons: addition ( ), subtraction (-), multiplication (*), and division (/).</p> <p>Special buttons:</p> <ul> <li><p>AC to clear the current input.</p></li> <li><p>DEL to delete the last character.</p></li> <li><p> /- to toggle between positive and negative numbers.</p></li> <li><p>= to evaluate the expression and show the result.</p></li> </ul> <p>With this project, you’ll learn how to:</p> <ul> <li><p>Create a user interface with HTML.</p></li> <li><p>Style elements using CSS to improve the visual appeal.</p></li> <li><p>Implement calculator logic using JavaScript to handle button <br> interactions and perform calculations.</p></li> </ul> <p>STEP 1: HTML STRUCTURE - BUILDING THE CALCULATOR'S LAYOUT</p> <p>The HTML code provides the foundational structure for our calculator. In this part, we define the elements that will make up our calculator, such as buttons and a display area, you can use any editor of your choice for this effect, I personally prefer Visual studio code. Here’s the complete HTML code for the calculator:<br> </p> <pre class="brush:php;toolbar:false"> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Calculator</title> <link rel="stylesheet" href="style.css"> </head> <body> <div> <p>Explanation</p> <p>Document Type and Language Declaration:<br> </p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> </pre> <p>Tells the browser that this is an HTML5 document.<br> </p> <pre class="brush:php;toolbar:false"><html lang="en"> </pre> <p>Begins the HTML document and specifies English as the language. This helps search engines and screen readers understand the language of the document.</p> <p>Head Section:<br> </p> <pre class="brush:php;toolbar:false"><head> </pre> <p>Contains metadata and links significant to the document but not visible to the user.<br> </p> <pre class="brush:php;toolbar:false"><meta charset="UTF-8"> </pre> <p>Sets the character encoding, ensuring compatibility with most languages.<br> </p> <pre class="brush:php;toolbar:false"><meta name="viewport" content="width=device-width, initial-scale=1.0"> </pre> <p>Makes the page responsive by adjusting its layout to fit different devices.<br> </p> <pre class="brush:php;toolbar:false"><title>Calculator</title> </pre> <p>Sets the title displayed on the browser tab.<br> </p><pre class="brush:php;toolbar:false"> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Calculator</title> <link rel="stylesheet" href="style.css"> </head> <body> <div> <p>Explanation</p> <p>Document Type and Language Declaration:<br> </p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> </pre> <p>Links to the CSS file where styles are defined.</p> <p>Calculator Layout:<br> </p> <pre class="brush:php;toolbar:false"><html lang="en"> </pre> <p>Links to the JavaScript file that handles the calculator’s functionality.</p> <p>STEP 2: CSS STYLING - DESIGNING THE CALCULATOR INTERFACE</p> <p>Now that we have the structure, let’s move to the styling. This CSS code will make the calculator look more modern, adding colors, rounded buttons, shadows, and responsive layout adjustments.<br> </p> <pre class="brush:php;toolbar:false"><head> </pre> <p>Explanation</p> <p>Basic Reset and Font:<br> </p> <pre class="brush:php;toolbar:false"><meta charset="UTF-8"> </pre> <p>Removes default padding and margins, sets box-sizing to border-box for consistent sizing, and applies a modern font.</p> <p>Body Styling:</p> <p>body: Uses Flexbox to center the calculator container in the middle of the screen and applies a gradient background.</p> <p>Calculator Container:</p> <p>.calculator: Adds padding, rounded corners, and a shadow for a neat, card-like appearance.</p> <p>Display Input:</p> <p>input: This styling gives the display area a large font size and right alignment, resembling a real calculator display.</p> <p>Button Styling:</p> <p>.calculator button: Sets up a circular button with a shadow effect, white text color, and spacing for alignment.</p> <p>.actionbtn, .clearbtn, and .enter: Styles for specific buttons to make them stand out (e.g., green for operators, red for clear, and orange for equal).</p> <p>STEP 3: THIS IS WHERE ALL THE JAVASCRIPT LOGIC HAPPENS - MAKING THE CALCULATOR FUNCTIONAL</p> <p>With structure and style well accomplished, lets add a functionality using JavaScript. This script allows us to handle click on buttons, perform arithmetic, and display results.<br> </p> <pre class="brush:php;toolbar:false"><meta name="viewport" content="width=device-width, initial-scale=1.0"> </pre> <p>Explanation</p> <p>Event Listener for Page Load:<br> </p> <pre class="brush:php;toolbar:false"><title>Calculator</title> </pre> <p>Ensures the script runs after all HTML content is loaded.</p> <p>Input and Button Variables:<br> </p> <pre class="brush:php;toolbar:false"><link rel="stylesheet" href="style.css"> </pre> <p>Selects the display area.<br> </p> <pre class="brush:php;toolbar:false"><div> <p>Wraps the entire calculator interface. We’ll apply styles to this container to make it look like a calculator.<br> </p> <pre class="brush:php;toolbar:false"><input type="text" placeholder="0"> <p>This is the display area of the calculator, where we show the current number or result. It is disabled, so users can’t type directly.</p> <p>Buttons:<br> </p> <pre class="brush:php;toolbar:false"><button> <p>Clears the calculator display and resets the current calculation.<br> </p> <pre class="brush:php;toolbar:false"><button> <p>Deletes the last entered character.<br> </p> <pre class="brush:php;toolbar:false"><button> <p>Toggles between positive and negative values.<br> </p> <pre class="brush:php;toolbar:false"><button> <p>The division operator.</p> <p>Remaining button elements represent numbers (0–9), operators (+, -, *, /), and a decimal point (.). The = button (class="enter") is used to evaluate the expression.</p> <p>JavaScript File:<br> </p> <pre class="brush:php;toolbar:false"><script src="script.js"></script> </pre> <p>Collects all buttons in an array for easy manipulation.</p> <p>Button Click Events:<br> </p> <pre class="brush:php;toolbar:false">*{ padding: 0; margin: 0; box-sizing: border-box; font-family: 'poppins', sans-serif; } body{ width: 100vw; height: 100vh; display: flex; justify-content: center; align-items: center; background: linear-gradient(45deg, #0a0a0a, #3a4452); } .calculator{ border: 1px solid #a2a2a2; padding: 20px; border-radius: 20px; background: transparent; box-shadow: 0px 3px 15px rgba(113, 115, 119, 0.5); } input{ width: 272px; min-height: 100px; border: none; padding: 5px; margin: 10px; background: transparent; font-size: 40px; text-align: right; cursor: text; outline: none; color: #fff; } input::placeholder{ color: #fff; } .calculator button{ width: 50px; height: 50px; margin: 10px; border-radius: 50%; border: none; box-shadow: -5px 3px 10px rgba(9, 9, 9, 0.5); background: transparent; color: #fff; cursor: pointer; outline: none; } .calculator .actionbtn{ color: #1afe17; } .calculator .clearbtn{ background: #f31d1f; } .calculator .enter{ background: #f5881a; } </pre> <p>Adds a click event to each button. Depending on the button, different actions are performed:</p> <p>Display Font Size Adjustment: Reduces font size when input length exceeds 10 characters.</p> <p>Equal Sign (=): Evaluates the expression using eval() and displays the result. If there’s an error (e.g., invalid syntax), it displays “Error.”</p> <p>Clear (AC): Resets string and clears the display.</p> <p>Delete (DEL): Removes the last character from string and updates the display.</p> <p>Number and Operator Buttons: Adds the button’s value to string and updates the display.</p> <p>Toggle Sign ( /-):<br> </p> <pre class="brush:php;toolbar:false">* { padding: 0; margin: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; } </pre> <p>Multiplies the current number by -1 to toggle between positive and negative values.</p><p>Conclusively, building a simple yet functional calculator web app using HTML, CSS, and JavaScript is a fantastic project for both beginners and experienced developers. By carefully combining the structural foundation provided by HTML, the stylistic elements brought to life with CSS, and the interactive functionality powered by JavaScript, we can create an intuitive tool that not only serves its primary purpose but also demonstrates core web development concepts.</p> <p>Moreover, this project opens up a wide range of possibilities for further exploration and enhancement. the lessons learned here provide a comprehensive foundation for more complex projects. Web development is an ongoing learning process, and this project showcases how every line of code contributes to a functional, engaging experience.</p> <p>As you continue to refine your skills, consider how you can make this calculator even more user-friendly and powerful. Experiment with different layouts, try implementing additional mathematical functions. Every change you make deepens your understanding of coding principles and enhances your development resources.</p> <p>Happy Coding!</p> </pre></pre><p>The above is the detailed content of BUILDING A SIMPLE WEB-BASED CALCULATOR: Step-by-step Guild with Html CSS And JavaScript. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div id="377j5v51b" class="wzconShengming_sp"> <div id="377j5v51b" class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796822133.html" title="External vs. Internal CSS: What's the Best Approach?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175035152168797.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="External vs. Internal CSS: What's the Best Approach?" /> </a> <a href="http://m.miracleart.cn/faq/1796822133.html" title="External vs. Internal CSS: What's the Best Approach?" class="phphistorical_Version2_mids_title">External vs. Internal CSS: What's the Best Approach?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jun 20, 2025 am 12:45 AM</span> <p class="Articlelist_txts_p">ThebestapproachforCSSdependsontheproject'sspecificneeds.Forlargerprojects,externalCSSisbetterduetomaintainabilityandreusability;forsmallerprojectsorsingle-pageapplications,internalCSSmightbemoresuitable.It'scrucialtobalanceprojectsize,performanceneed</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796821588.html" title="Does my CSS must be on lower case?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175026415047262.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Does my CSS must be on lower case?" /> </a> <a href="http://m.miracleart.cn/faq/1796821588.html" title="Does my CSS must be on lower case?" class="phphistorical_Version2_mids_title">Does my CSS must be on lower case?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jun 19, 2025 am 12:29 AM</span> <p class="Articlelist_txts_p">No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796821998.html" title="CSS Case Sensitivity: Understanding What Matters" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175034936181156.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="CSS Case Sensitivity: Understanding What Matters" /> </a> <a href="http://m.miracleart.cn/faq/1796821998.html" title="CSS Case Sensitivity: Understanding What Matters" class="phphistorical_Version2_mids_title">CSS Case Sensitivity: Understanding What Matters</a> <span id="377j5v51b" class="Articlelist_txts_time">Jun 20, 2025 am 12:09 AM</span> <p class="Articlelist_txts_p">CSSismostlycase-insensitive,butURLsandfontfamilynamesarecase-sensitive.1)Propertiesandvalueslikecolor:red;arenotcase-sensitive.2)URLsmustmatchtheserver'scase,e.g.,/images/Logo.png.3)Fontfamilynameslike'OpenSans'mustbeexact.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796828180.html" title="What is Autoprefixer and how does it work?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175139012130913.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What is Autoprefixer and how does it work?" /> </a> <a href="http://m.miracleart.cn/faq/1796828180.html" title="What is Autoprefixer and how does it work?" class="phphistorical_Version2_mids_title">What is Autoprefixer and how does it work?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jul 02, 2025 am 01:15 AM</span> <p class="Articlelist_txts_p">Autoprefixer is a tool that automatically adds vendor prefixes to CSS attributes based on the target browser scope. 1. It solves the problem of manually maintaining prefixes with errors; 2. Work through the PostCSS plug-in form, parse CSS, analyze attributes that need to be prefixed, and generate code according to configuration; 3. The usage steps include installing plug-ins, setting browserslist, and enabling them in the build process; 4. Notes include not manually adding prefixes, keeping configuration updates, prefixes not all attributes, and it is recommended to use them with the preprocessor.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796821606.html" title="What are CSS counters?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175026444127039.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What are CSS counters?" /> </a> <a href="http://m.miracleart.cn/faq/1796821606.html" title="What are CSS counters?" class="phphistorical_Version2_mids_title">What are CSS counters?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jun 19, 2025 am 12:34 AM</span> <p class="Articlelist_txts_p">CSScounterscanautomaticallynumbersectionsandlists.1)Usecounter-resettoinitialize,counter-incrementtoincrease,andcounter()orcounters()todisplayvalues.2)CombinewithJavaScriptfordynamiccontenttoensureaccurateupdates.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796821580.html" title="CSS: When Does Case Matter (and When Doesn't)?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175026403168895.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="CSS: When Does Case Matter (and When Doesn't)?" /> </a> <a href="http://m.miracleart.cn/faq/1796821580.html" title="CSS: When Does Case Matter (and When Doesn't)?" class="phphistorical_Version2_mids_title">CSS: When Does Case Matter (and When Doesn't)?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jun 19, 2025 am 12:27 AM</span> <p class="Articlelist_txts_p">In CSS, selector and attribute names are case-sensitive, while values, named colors, URLs, and custom attributes are case-sensitive. 1. The selector and attribute names are case-insensitive, such as background-color and background-Color are the same. 2. The hexadecimal color in the value is case-sensitive, but the named color is case-sensitive, such as red and Red is invalid. 3. URLs are case sensitive and may cause file loading problems. 4. Custom properties (variables) are case sensitive, and you need to pay attention to the consistency of case when using them.</p> </div> <div id="377j5v51b" class="phphistorical_Version2_mids"> <a href="http://m.miracleart.cn/faq/1796827610.html" title="What is the conic-gradient() function?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175130377175874.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What is the conic-gradient() function?" /> </a> <a href="http://m.miracleart.cn/faq/1796827610.html" title="What is the conic-gradient() function?" class="phphistorical_Version2_mids_title">What is the conic-gradient() function?</a> <span id="377j5v51b" class="Articlelist_txts_time">Jul 01, 2025 am 01:16 AM</span> <p class="Articlelist_txts_p">Theconic-gradient()functioninCSScreatescirculargradientsthatrotatecolorstopsaroundacentralpoint.1.Itisidealforpiecharts,progressindicators,colorwheels,anddecorativebackgrounds.2.Itworksbydefiningcolorstopsatspecificangles,optionallystartingfromadefin</p> </div> </div> <a href="http://m.miracleart.cn/web-designer.html" class="phpgenera_Details_mainL4_botton"> <span>See all articles</span> <img src="/static/imghw/down_right.png" alt="" /> </a> </div> </div> </div> </main> <footer> <div id="377j5v51b" class="footer"> <div id="377j5v51b" class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training，Help PHP learners grow quickly！</p> </div> <div id="377j5v51b" class="footermid"> <a href="http://m.miracleart.cn/about/us.html">About us</a> <a href="http://m.miracleart.cn/about/disclaimer.html">Disclaimer</a> <a href="http://m.miracleart.cn/update/article_0_1.html">Sitemap</a> </div> <div id="377j5v51b" class="footerbottom"> <p> 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