- 命名只能是[a-zA-Z0-9]、連字符(-)、下劃線(_)<\/li>
- 命名必須以字母開(kāi)頭命名、單詞間用下?lián)Q線(main_left)連接或駝峰命名(mainLeft、MainLeft)<\/li>
- 語(yǔ)義化命名{側(cè)邊欄：sidebar,主要內(nèi)容：main}<\/li> <\/ol> <\/article><\/section>
html標(biāo)簽語(yǔ)義化<\/h1>
- header元素<\/dt>
- 描述：“網(wǎng)頁(yè)”或“section”的頁(yè)頭，一般包括h1-h6、hgroup、nav、logo相關(guān)等。<\/dd>
- 注意：沒(méi)有個(gè)數(shù)限制，如果hgroup或h1-h6自己就能工作的很好，那就不要用header。<\/dd>
- 示例：header>hgroup>h1+h2<\/dd> <\/dl>
- footer元素<\/dt>
- 描述：“網(wǎng)頁(yè)”或“section”的頁(yè)腳，一般包括版權(quán)等。<\/dd>
- 注意：沒(méi)有個(gè)數(shù)限制。<\/dd>
- 示例：footer{copyright©2013}<\/dd> <\/dl>
- hgroup元素<\/dt>
- 描述：“網(wǎng)頁(yè)”或“section”的標(biāo)題，或組合h1-h6。<\/dd>
- 注意：連續(xù)多個(gè)h1-h6標(biāo)簽需要用hgroup，只有一個(gè)h1-h6不需要hgroup，<\/dd>
- 示例：hgroup>h1+h2<\/dd> <\/dl>
- nav元素<\/dt>
- 描述：定義主導(dǎo)航。<\/dd>
- 注意：除主導(dǎo)航外不建議使用。<\/dd>
- 示例：nav>ol>li{menu$}*3<\/dd> <\/dl>
- aside元素<\/dt>
- 描述：在article內(nèi)表示主要內(nèi)容的附屬信息，在article外常用于側(cè)邊欄。<\/dd>
- 示例：section>article+aside<\/dd> <\/dl>
- section元素<\/dt>
- 描述：代表文檔中一個(gè)分組或分段。<\/dd>
- 注意：通常需要包含標(biāo)題，可以用nav、article等的就不要用section，沒(méi)有實(shí)際意義就用div。<\/dd>
- 示例：section>h1+article<\/dd> <\/dl>
- article元素<\/dt>
- 描述：代表在頁(yè)面或網(wǎng)站中自成一體的內(nèi)容，為了獨(dú)立開(kāi)發(fā)或重用；例如論壇帖子，博客文章。<\/dd>
- 注意：通常需要包含標(biāo)題。<\/dd>
- 示例：section>h1+article*2>h2{獨(dú)立$}<\/dd> <\/dl>
- address元素<\/dt>
- 描述：常用語(yǔ)聯(lián)系信息，郵編地址等。<\/dd>
- 示例：address>ul>li{地址$}*2 <\/dd> <\/dl>
- h1-h6元素<\/dt>
- 描述：標(biāo)題。<\/dd>
- 注意：因?yàn)閔group、section、article的出現(xiàn)，允許一個(gè)頁(yè)面里出現(xiàn)多次h1。<\/dd>
- 示例：section>h1{section標(biāo)題}+article>h1{article標(biāo)題}<\/dd> <\/dl>
- div元素<\/dt>
- 描述：一個(gè)區(qū)塊，沒(méi)有語(yǔ)義。<\/dd> <\/dl>
- dl元素<\/dt>
- 描述：自定義列表，與dt、dd組合使用。<\/dd>
- 注意：常用于名詞解釋，描述。<\/dd> <\/dl>
- ol元素<\/dt>
- 描述：有序列表，與li組合使用。<\/dd> <\/dl>
- ul元素<\/dt>
- 描述：無(wú)序列表，與li組合使用。<\/dd> <\/dl>
- time元素<\/dt>
- 描述：定義發(fā)布時(shí)間。<\/dd>
- 注意：time包括記起識(shí)別時(shí)間戳屬性(datetime=\"2012-12-25\")，pubdata標(biāo)記(pubdata=\"true\")屬性，文本內(nèi)容<\/dd> <\/dl>
- a元素(anchor 的縮寫)<\/dt>
- 描述：定義超鏈接。<\/dd> <\/dl>
- em元素(emphasis 的縮寫)<\/dt>
- 描述：句意強(qiáng)調(diào)或局部強(qiáng)調(diào)，改變局部側(cè)重點(diǎn)。<\/dd> <\/dl>
- strong元素<\/dt>
- 描述：表示重要，凸顯關(guān)鍵語(yǔ)句。<\/dd> <\/dl>
- p元素<\/dt>
- 描述：定義段落。<\/dd> <\/dl>
- b元素(bold 的縮寫)<\/dt>
- 描述：表示加粗，突出顯示，無(wú)強(qiáng)調(diào)作用，常用于文檔概要，評(píng)論中的關(guān)鍵字。<\/dd> <\/dl>
- i元素(italic 的縮寫)<\/dt>
- 描述：表示傾斜或不同于文章觀點(diǎn)的文本，類似于話外音。<\/dd> <\/dl>
- code元素<\/dt>
- 描述：定義計(jì)算機(jī)代碼文本。<\/dd> <\/dl>
- q元素(quote 的縮寫)<\/dt>
- 描述：定義短的引用內(nèi)容。<\/dd> <\/dl>
- blockquote元素<\/dt>
- 描述：定義長(zhǎng)的引用內(nèi)容。<\/dd> <\/dl>
- cite元素<\/dt>
- 描述：定義引用內(nèi)容標(biāo)題。<\/dd> <\/dl>
- u元素(underline 的縮寫)<\/dt>
- 描述：定義下劃線。<\/dd> <\/dl>
- abbr元素(abbreviation 的縮寫)<\/dt>
- 描述：定義一個(gè)縮寫文本，建議在abbr的title中填寫全稱。<\/dd> <\/dl>
- dfn元素(defining instance 的縮寫)<\/dt>
- 描述：定義一個(gè)術(shù)語(yǔ)。<\/dd> <\/dl>
- var元素<\/dt>
- 描述：定義計(jì)算機(jī)代碼中的變量。<\/dd> <\/dl>
- samp元素(sample 的縮寫)<\/dt>
- 描述：由程序輸出的示例文本。<\/dd> <\/dl>
- kbd元素(keyboard 的縮寫)<\/dt>
- 描述：由鍵盤輸入文本。<\/dd> <\/dl>
- wbr元素(word break 的縮寫)<\/dt>
- 描述：定義換行的時(shí)機(jī)。<\/dd> <\/dl>
- span元素<\/dt>
- 描述：一個(gè)行內(nèi)元素區(qū)域，沒(méi)有語(yǔ)義。<\/dd> <\/dl>
- br元素<\/dt>
- 描述：定義一個(gè)換行。<\/dd> <\/dl>
- pre元素<\/dt>
- 描述：預(yù)格式化文本，會(huì)保留空格和換行。<\/dd> <\/dl>
- hr元素<\/dt>
- 描述：分割線。<\/dd> <\/dl>
- figure元素<\/dt>
- 描述：一塊獨(dú)立的內(nèi)容，該內(nèi)容被移除不會(huì)影響周圍內(nèi)容，常用于統(tǒng)計(jì)，圖，音頻、視頻、代碼片段等。<\/dd> <\/dl>
- figcaption元素<\/dt>
- 描述：當(dāng)figure需要一個(gè)標(biāo)題時(shí)，用且只能用figcaption定義。<\/dd> <\/dl>
- img元素<\/dt>
- 描述：引入一張圖片。<\/dd> <\/dl>
- iframe元素<\/dt>
- 描述：引入一張網(wǎng)頁(yè)。<\/dd> <\/dl>
- canvas元素<\/dt>
- 描述：用于繪畫。<\/dd> <\/dl>
- video元素<\/dt>
- 描述：引入視頻。<\/dd> <\/dl>
- audio元素<\/dt>
- 描述：引入音頻。<\/dd> <\/dl> <\/article><\/section><\/body><\/html><\/pre> <\/p>
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[Html Css] css naming convention, html tag semantics_html/css_WEB-ITnose
[Html Css] css naming convention, html tag semantics_html/css_WEB-ITnose
Jun 24, 2016 pm 12:34 PM
<!doctype html><html lang="en"><head> <meta charset="UTF-8"> <title>css命名規(guī)范、html標(biāo)簽語(yǔ)義化</title> <style> dl,li { font: 12px/24px 'simsun';} dl dt { font-weight: bold; } </style></head><body><div class="link"> <a href="http://www.html5jscss.com/html5-semantics-section-30.html">本文參考文章1</a> <a href="http://www.html5jscss.com/html5-semantics-rich-60.html">本文參考文章2</a></div><section> <h1>命名規(guī)范</h1> <article> <ol> <li>命名只能是[a-zA-Z0-9]、連字符(-)、下劃線(_)</li> <li>命名必須以字母開(kāi)頭命名、單詞間用下?lián)Q線(main_left)連接或駝峰命名(mainLeft、MainLeft)</li> <li>語(yǔ)義化命名{側(cè)邊欄：sidebar,主要內(nèi)容：main}</li> </ol> </article></section><section> <h1>html標(biāo)簽語(yǔ)義化</h1> <article> <dl> <dt>header元素</dt> <dd>描述：“網(wǎng)頁(yè)”或“section”的頁(yè)頭，一般包括h1-h6、hgroup、nav、logo相關(guān)等。</dd> <dd>注意：沒(méi)有個(gè)數(shù)限制，如果hgroup或h1-h6自己就能工作的很好，那就不要用header。</dd> <dd>示例：header>hgroup>h1+h2</dd> </dl> <dl> <dt>footer元素</dt> <dd>描述：“網(wǎng)頁(yè)”或“section”的頁(yè)腳，一般包括版權(quán)等。</dd> <dd>注意：沒(méi)有個(gè)數(shù)限制。</dd> <dd>示例：footer{copyright©2013}</dd> </dl> <dl> <dt>hgroup元素</dt> <dd>描述：“網(wǎng)頁(yè)”或“section”的標(biāo)題，或組合h1-h6。</dd> <dd>注意：連續(xù)多個(gè)h1-h6標(biāo)簽需要用hgroup，只有一個(gè)h1-h6不需要hgroup，</dd> <dd>示例：hgroup>h1+h2</dd> </dl> <dl> <dt>nav元素</dt> <dd>描述：定義主導(dǎo)航。</dd> <dd>注意：除主導(dǎo)航外不建議使用。</dd> <dd>示例：nav>ol>li{menu$}*3</dd> </dl> <dl> <dt>aside元素</dt> <dd>描述：在article內(nèi)表示主要內(nèi)容的附屬信息，在article外常用于側(cè)邊欄。</dd> <dd>示例：section>article+aside</dd> </dl> <dl> <dt>section元素</dt> <dd>描述：代表文檔中一個(gè)分組或分段。</dd> <dd>注意：通常需要包含標(biāo)題，可以用nav、article等的就不要用section，沒(méi)有實(shí)際意義就用div。</dd> <dd>示例：section>h1+article</dd> </dl> <dl> <dt>article元素</dt> <dd>描述：代表在頁(yè)面或網(wǎng)站中自成一體的內(nèi)容，為了獨(dú)立開(kāi)發(fā)或重用；例如論壇帖子，博客文章。</dd> <dd>注意：通常需要包含標(biāo)題。</dd> <dd>示例：section>h1+article*2>h2{獨(dú)立$}</dd> </dl> <dl> <dt>address元素</dt> <dd>描述：常用語(yǔ)聯(lián)系信息，郵編地址等。</dd> <dd>示例：address>ul>li{地址$}*2 </dd> </dl> <dl> <dt>h1-h6元素</dt> <dd>描述：標(biāo)題。</dd> <dd>注意：因?yàn)閔group、section、article的出現(xiàn)，允許一個(gè)頁(yè)面里出現(xiàn)多次h1。</dd> <dd>示例：section>h1{section標(biāo)題}+article>h1{article標(biāo)題}</dd> </dl> <dl> <dt>div元素</dt> <dd>描述：一個(gè)區(qū)塊，沒(méi)有語(yǔ)義。</dd> </dl> <dl> <dt>dl元素</dt> <dd>描述：自定義列表，與dt、dd組合使用。</dd> <dd>注意：常用于名詞解釋，描述。</dd> </dl> <dl> <dt>ol元素</dt> <dd>描述：有序列表，與li組合使用。</dd> </dl> <dl> <dt>ul元素</dt> <dd>描述：無(wú)序列表，與li組合使用。</dd> </dl> <dl> <dt>time元素</dt> <dd>描述：定義發(fā)布時(shí)間。</dd> <dd>注意：time包括記起識(shí)別時(shí)間戳屬性(datetime="2012-12-25")，pubdata標(biāo)記(pubdata="true")屬性，文本內(nèi)容</dd> </dl> <dl> <dt>a元素(anchor 的縮寫)</dt> <dd>描述：定義超鏈接。</dd> </dl> <dl> <dt>em元素(emphasis 的縮寫)</dt> <dd>描述：句意強(qiáng)調(diào)或局部強(qiáng)調(diào)，改變局部側(cè)重點(diǎn)。</dd> </dl> <dl> <dt>strong元素</dt> <dd>描述：表示重要，凸顯關(guān)鍵語(yǔ)句。</dd> </dl> <dl> <dt>p元素</dt> <dd>描述：定義段落。</dd> </dl> <dl> <dt>b元素(bold 的縮寫)</dt> <dd>描述：表示加粗，突出顯示，無(wú)強(qiáng)調(diào)作用，常用于文檔概要，評(píng)論中的關(guān)鍵字。</dd> </dl> <dl> <dt>i元素(italic 的縮寫)</dt> <dd>描述：表示傾斜或不同于文章觀點(diǎn)的文本，類似于話外音。</dd> </dl> <dl> <dt>code元素</dt> <dd>描述：定義計(jì)算機(jī)代碼文本。</dd> </dl> <dl> <dt>q元素(quote 的縮寫)</dt> <dd>描述：定義短的引用內(nèi)容。</dd> </dl> <dl> <dt>blockquote元素</dt> <dd>描述：定義長(zhǎng)的引用內(nèi)容。</dd> </dl> <dl> <dt>cite元素</dt> <dd>描述：定義引用內(nèi)容標(biāo)題。</dd> </dl> <dl> <dt>u元素(underline 的縮寫)</dt> <dd>描述：定義下劃線。</dd> </dl> <dl> <dt>abbr元素(abbreviation 的縮寫)</dt> <dd>描述：定義一個(gè)縮寫文本，建議在abbr的title中填寫全稱。</dd> </dl> <dl> <dt>dfn元素(defining instance 的縮寫)</dt> <dd>描述：定義一個(gè)術(shù)語(yǔ)。</dd> </dl> <dl> <dt>var元素</dt> <dd>描述：定義計(jì)算機(jī)代碼中的變量。</dd> </dl> <dl> <dt>samp元素(sample 的縮寫)</dt> <dd>描述：由程序輸出的示例文本。</dd> </dl> <dl> <dt>kbd元素(keyboard 的縮寫)</dt> <dd>描述：由鍵盤輸入文本。</dd> </dl> <dl> <dt>wbr元素(word break 的縮寫)</dt> <dd>描述：定義換行的時(shí)機(jī)。</dd> </dl> <dl> <dt>span元素</dt> <dd>描述：一個(gè)行內(nèi)元素區(qū)域，沒(méi)有語(yǔ)義。</dd> </dl> <dl> <dt>br元素</dt> <dd>描述：定義一個(gè)換行。</dd> </dl> <dl> <dt>pre元素</dt> <dd>描述：預(yù)格式化文本，會(huì)保留空格和換行。</dd> </dl> <dl> <dt>hr元素</dt> <dd>描述：分割線。</dd> </dl> <dl> <dt>figure元素</dt> <dd>描述：一塊獨(dú)立的內(nèi)容，該內(nèi)容被移除不會(huì)影響周圍內(nèi)容，常用于統(tǒng)計(jì)，圖，音頻、視頻、代碼片段等。</dd> </dl> <dl> <dt>figcaption元素</dt> <dd>描述：當(dāng)figure需要一個(gè)標(biāo)題時(shí)，用且只能用figcaption定義。</dd> </dl> <dl> <dt>img元素</dt> <dd>描述：引入一張圖片。</dd> </dl> <dl> <dt>iframe元素</dt> <dd>描述：引入一張網(wǎng)頁(yè)。</dd> </dl> <dl> <dt>canvas元素</dt> <dd>描述：用于繪畫。</dd> </dl> <dl> <dt>video元素</dt> <dd>描述：引入視頻。</dd> </dl> <dl> <dt>audio元素</dt> <dd>描述：引入音頻。</dd> </dl> </article></section></body></html>?
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What are the most commonly used global attributes in html?
Jul 10, 2025 am 10:58 AM
class, id, style, data-, and title are the most commonly used global attributes in HTML. class is used to specify one or more class names to facilitate style setting and JavaScript operations; id provides unique identifiers for elements, suitable for anchor jumps and JavaScript control; style allows for inline styles to be added, suitable for temporary debugging but not recommended for large-scale use; data-properties are used to store custom data, which is convenient for front-end and back-end interaction; title is used to add mouseover prompts, but its style and behavior are limited by the browser. Reasonable selection of these attributes can improve development efficiency and user experience.
Implementing Native Lazy Loading for Images in HTML
Jul 12, 2025 am 12:48 AM
Native lazy loading is a built-in browser function that enables lazy loading of pictures by adding loading="lazy" attribute to the tag. 1. It does not require JavaScript or third-party libraries, and is used directly in HTML; 2. It is suitable for pictures that are not displayed on the first screen below the page, picture gallery scrolling add-ons and large picture resources; 3. It is not suitable for pictures with first screen or display:none; 4. When using it, a suitable placeholder should be set to avoid layout jitter; 5. It should optimize responsive image loading in combination with srcset and sizes attributes; 6. Compatibility issues need to be considered. Some old browsers do not support it. They can be used through feature detection and combined with JavaScript solutions.
- 注意：time包括記起識(shí)別時(shí)間戳屬性(datetime=\"2012-12-25\")，pubdata標(biāo)記(pubdata=\"true\")屬性，文本內(nèi)容<\/dd> <\/dl>
- 注意：常用于名詞解釋，描述。<\/dd> <\/dl>
- 注意：因?yàn)閔group、section、article的出現(xiàn)，允許一個(gè)頁(yè)面里出現(xiàn)多次h1。<\/dd>
- 示例：address>ul>li{地址$}*2 <\/dd> <\/dl>
- 注意：通常需要包含標(biāo)題。<\/dd>
- 注意：通常需要包含標(biāo)題，可以用nav、article等的就不要用section，沒(méi)有實(shí)際意義就用div。<\/dd>
- 示例：section>article+aside<\/dd> <\/dl>
- 注意：除主導(dǎo)航外不建議使用。<\/dd>
- 注意：連續(xù)多個(gè)h1-h6標(biāo)簽需要用hgroup，只有一個(gè)h1-h6不需要hgroup，<\/dd>
- 注意：沒(méi)有個(gè)數(shù)限制。<\/dd>
- 注意：沒(méi)有個(gè)數(shù)限制，如果hgroup或h1-h6自己就能工作的很好，那就不要用header。<\/dd>
