ID选择器 | ID selectors (Selectors) – CSS 中文开发手册
ID选择器 | ID selectors (Selectors) - CSS 中文开发手册
在HTML文档中,CSS ID选择器根据其id属性的值匹配元素。所选元素的ID属性必须与选择器中给定的值完全匹配。
/* The element with id="demo" */ div#demo { border: red 2px solid; }
语法
#id_value { style properties }
请注意,这相当于以下内容attribute selector:
[id=id_value] { style properties }
实例
CSS
div#identified { background-color: skyblue; }
HTML
<div id="identified">This div has a special ID on it!</div> <div>This is just a regular div.</div>
结果
规范
Specification |
Status |
Comment |
---|---|---|
Selectors Level 4The definition of 'ID selectors' in that specification. |
Working Draft |
|
Selectors Level 3The definition of 'ID selectors' in that specification. |
Recommendation |
|
CSS Level 2 (Revision 1)The definition of 'ID selectors' in that specification. |
Recommendation |
|
CSS Level 1The definition of 'ID selectors' in that specification. |
Recommendation |
Initial definition |
浏览器兼容性
Feature |
Chrome |
Edge |
Firefox (Gecko) |
Internet Explorer |
Opera |
Safari |
---|---|---|---|---|---|---|
Basic support |
(Yes) |
(Yes) |
(Yes) |
(Yes) |
(Yes) |
(Yes) |
Feature |
Android |
Chrome for Android |
Edge |
Firefox Mobile (Gecko) |
IE Mobile |
Opera Mobile |
Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support |
? |
? |
(Yes) |
? |
? |
? |
? |