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Attributes accesskey (attribute) class (attribute) contenteditable (attribute) contextmenu (attribute) data-* (attribute) dir (attribute) draggable (attribute) dropzone (attribute) Global attributes hidden (attribute) id (attribute) itemid (attribute) itemprop (attribute) itemref (attribute) itemscope (attribute) itemtype (attribute) lang (attribute) slot (attribute) spellcheck (attribute) style (attribute) tabindex (attribute) title (attribute) translate (attribute) Elements a abbr address area article aside audio b base bdi bdo blockquote body br button canvas caption cite code col colgroup data datalist dd del details dfn dialog div dl dt em embed fieldset figcaption figure footer form h1 head header hr html i iframe img input input type="button" input type="checkbox" input type="color" input type="date" input type="datetime"-local input type="email" input type="file" input type="hidden" input type="image" input type="month" input type="number" input type="password" input type="radio" input type="range" input type="reset" input type="search" input type="submit" input type="tel" input type="text" input type="time" input type="url" input type="week" ins kbd label legend li link main map mark menu menuitem meta meter nav noscript object ol optgroup option output p param picture pre progress q rp rt rtc ruby s samp script section select slot small source span strong style sub summary sup table tbody td template textarea tfoot th thead time title tr track u ul var video wbr Miscellaneous Attributes Block-level elements CORS enabled image CORS settings attributes Element Inline elements Kinds of HTML content Link types Microdata Optimizing your pages for speculative parsing Preloading content Reference Supported media formats Using the application cache Obsolete acronym applet basefont big blink center command content dir element font frame frameset hgroup image input type="datetime" isindex keygen listing marquee nextid noframes plaintext strike tt xmp
characters

全局屬性class,是一個(gè)以空格分隔的class屬性列表??稍试SCSS和Javascript對(duì)Class屬性進(jìn)行選擇,通過(guò)class選擇器或者類似DOM方法的方程來(lái)選取文檔中某一類特定的元素。

document.getElementsByClassName.

盡管對(duì)class 的命名沒有要求,但 web 開發(fā)者最好使用可以表達(dá)元素使用目的的名字,而不是描述元素(的樣式)的名字(即使一個(gè)元素是斜體,但是class的命名也不應(yīng)該是italics)。語(yǔ)義化命名即使在頁(yè)面表現(xiàn)發(fā)生改變時(shí)仍能保持邏輯。


規(guī)范

規(guī)范

狀態(tài)

評(píng)論

WHATWG HTML生活標(biāo)準(zhǔn)該規(guī)范中'class'的定義。

生活水平

最新的快照HTML5.1沒有變化

HTML5.1該規(guī)范中'class'的定義。

建議

WHATWG HTML Living Standard的快照,HTML5沒有改變

HTML5該規(guī)范中'class'的定義。

建議

WHATWG HTML生活標(biāo)準(zhǔn)快照。從HTML 4.01規(guī)范中,類現(xiàn)在是一個(gè)真正的全局屬性。

HTML 4.01規(guī)范該規(guī)范中'class'的定義。

建議

除<base>,<basefont>,<head>,<html>,<meta>,<param>,<script>,<style>和<title>外的所有元素均受支持。

瀏覽器兼容性

Feature

Chrome

Firefox (Gecko)

Internet Explorer

Opera

Safari

Basic support

(Yes)

(Yes)1

(Yes)

(Yes)

(Yes)

Feature

Android

Chrome for Android

Firefox Mobile (Gecko)

IE Mobile

Opera Mobile

Safari Mobile

Basic support

(Yes)

(Yes)

(Yes) 1

(Yes)

(Yes)

(Yes)

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