HTML的16个全局属性_html/css_WEB-ITnose
目录 [1]accesskey [2]class [3]dir [4]id [5]lang [6]style [7]tabindex [8]title [9]contenteditable [10]contentmenu [11]data-* [12]draggable [13]dropzone [14]hidden [15]spellcheck [16]translate
前面的话
在HTML中,属性能表达相当丰富的语义,而且属性也会额外提供很多实用的功能,HTML共支持16个常见的全局属性。
HTML原有属性
accesskey
作用:浏览器用来创建激活或聚焦元素的快捷键
值:一个键盘字符如 O
范围:支持该属性的元素有、、
注意:使用该属性可能在新窗口打开链接时可能会被浏览器屏蔽
<div> <a href="http://www.baidu.com" accesskey="b">百度</a> <a href="http://www.taobao.com" accesskey="a">阿里</a> <a href="http://www.qq.com" accesskey="t">腾讯</a> <p>快捷键(alt+b)可以跳转到百度;快捷键(alt+a)可以跳转到阿里;快捷键(alt+t)可以跳转到腾讯</p></div>
class
作用:规定元素的一个或多个类名
值:多个类名用空格分隔
注意:类名不能以数字开头
dir
作用:文字的方向
值:ltr/rtl/auto
id
作用:规定元素的唯一标识
注意:若浏览器中出现多个id名的情况,CSS样式对所以该id名的元素都生效,但js脚本仅对第一个出现该id名的元素生效
lang
作用:规定元素内容的语言
值:en英文/zn中文
style
作用:设置元素的行间样式
tabindex
作用:规定元素的tab键次序
值:
<div> <a href="http://www.baidu.com" tabindex="3">百度</a> <a href="http://www.taobao.com" tabindex="2">阿里</a> <a href="http://www.qq.com" tabindex="1">腾讯</a> </div>
title
作用:规定关于元素的额外信息,鼠标移到元素上时显示一段提示文本
HTML5新增属性
contenteditable
作用:指定是否可以在浏览器里编辑内容
值:true/false
注意:设置document.designMode ='on'时,页面的任意位置都可以编辑;使用contenteditable ='true'则只对具体元素和其包含的元素起作用
移动端:移动端ios5以及android3之后才支持该属性
选中文字后,点击下列相应属性值可进行演示
contextmenu(没有浏览器支持)
作用:跟元素关联的右键菜单
值:

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