:enabled
该:enabledCSS伪类表示任何可启用的元素。如果元素可以被激活（例如选择，点击或接受文本输入）或接受焦点，则该元素被认为是enabled。元素也有一个不能被激活或接受焦点的禁用状态。
/* Selects any enabled element */
input:enabled {
color: #22AA22;
}语法
:enabled实例
以下将使文本颜色在启用时为中绿色，禁用时为灰色。这允许向用户反馈哪些元素是可交互的。
下面的HTML...
<form action="url_of_form">
<label for="FirstField">First field (enabled):</label> <input type="text" id="FirstField" value="Lorem"><br />
<label for="SecondField">Second field (disabled):</label> <input type="text" id="SecondField" value="Ipsum" disabled="disabled"><br />
<input type="button" value="Submit" />
</form> ...和这个CSS一起使用...
input:enabled {
color: #22AA22;
}
input:disabled {
color: #D9D9D9;
}...结果为：
注意，按钮上的文本颜色也是绿色的，因为按钮也是处于启用状态的。
规范
Specification | Status | Comment |
|---|---|---|
HTML Living StandardThe definition of ':enabled' in that specification. | Living Standard | No change. |
HTML5The definition of ':enabled' in that specification. | Recommendation | Defines the semantic regarding HTML and forms. |
Selectors Level 4The definition of ':enabled' in that specification. | Working Draft | No change. |
CSS Basic User Interface Module Level 3The definition of ':enabled' in that specification. | Candidate Recommendation | Link to Selectors Level 3. |
Selectors Level 3The definition of ':enabled' in that specification. | Recommendation | Defines the pseudo-class, but not the associated semantic. |
浏览器兼容性
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
Basic support | 1.0 | (Yes) | 1.0 (1.7 or earlier) | 9.0 | 9.0 | 3.1 |
Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
Basic support | 2.1 | (Yes) | 1.0 (1) | 9.0 | 9.5 | 3.1 |
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