html规定元素的tab（用于导航时）键控制次序的属性tabindex

实例

带有指定 tab 键顺序的链接：

<a href="http://www.w3school.com.cn/" tabindex="2">W3School</a>
<a href="http://www.google.com/" tabindex="1">Google</a>
<a href="http://www.microsoft.com/" tabindex="3">Microsoft</a>

浏览器支持

几乎所有浏览器均 tabindex 属性，除了 Safari。

定义和用法

tabindex 属性规定元素的 tab 键控制次序（当 tab 键用于导航时）。

提示和注释

注释：以下元素支持 tabindex 属性：, , , , <object>, 以及 。</p><p style="margin: 0px; padding: 0px; border: 0px; font-size: 18px; color: rgb(63, 63, 63); font-family: 微软雅黑; white-space: normal; background-color: rgb(253, 252, 248);">语法</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><element tabindex="number"></pre><div class="contentsignin">登录后复制</div></div><p style="margin: 25px 0px 0px; padding: 0px; border: 0px; font-size: 16px; color: rgb(0, 0, 0); font-family: PingFangSC-Regular, Verdana, Arial, 微软雅黑, 宋体; white-space: normal; background-color: rgb(253, 252, 248);">属性值</p><table><tbody><tr class="firstRow"><td width="104" valign="top" style="word-break: break-all;">值</td><td width="1005" valign="top" style="word-break: break-all;">描述</td></tr><tr><td width="104" valign="top" style="word-break: break-all;">number</td><td width="1005" valign="top" style="word-break: break-all;">规定元素的 tab 键控制次序（1 是第一个）</td></tr></tbody></table><p>当浏览者浏览网站时可以通过按TAB键在网页的链接中依次移动，这是一个相当方便实用的功能。但如果网页中链接太多，恐怕按TAB键就没什么作用了，这时不妨通过改变TAB键移动的顺序来突出重点，在某些重要页面上方便访问者。<br/><br/>使用TABINDEX属性可以设置TAB键在链接中的移动顺序。把链接的TABINDEX属性设成1到32767的一个值，就可以把这个链接加入到 TAB键的序列中，而若把TABINDEX属性设为一个负值（如TABINDEX="-1"），那么这个链接将被排除在TAB键的序列之外。<br/><br/>当浏览者使用TAB键在网页链接中移动时，将首先移动到具有最小TABINDEX属性值的链接上，最后在具有最大TABINDEX属性值的链接上结束移动。如果有两个链接的TABINDEX属性相同，则以链接在html代码中出现的顺序为准。<br/></p><div class="code" style="position:relative; 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