:read-only - CSS（层叠样式表） 编辑

 :read-only CSS 伪类 表示元素不可被用户编辑的状态（如锁定的文本输入框）。

/* Selects any <input> element that is read-only */
/* Supported in Firefox with a prefix */
input:-moz-read-only {
  background-color: #ccc;
}

/* Supported in Blink/WebKit/Edge without a prefix */
input:read-only {
  background-color: #ccc;
}

注意：这个选择器不只是选择具有 readonly 属性的<input> 元素，它也会选择所有的不能被用户编辑的元素。

语法

:read-only

示例

HTML

<input type="text" value="Type whatever you want here.">
<input type="text" value="This is a read-only field." readonly>
<p>This is a normal paragraph.</p>
<p contenteditable="true">You can edit this paragraph!</p>

CSS

input { min-width: 25em; }
input:-moz-read-only { background: cyan; }
input:read-only { background: cyan; }

p:-moz-read-only { background: lightgray; }
p:read-only { background: lightgray; }
p[contenteditable="true"] { color: blue; }

输出

规范

规范	状态	备注
HTML Living Standard :read-only	Living Standard	No change.
HTML5 :read-only	Recommendation	Defines the semantics regarding HTML and constraint validation.
Selectors Level 4 :read-only	Working Draft	Defines the pseudo-class, but not the associated semantics.

浏览器兼容性

BCD tables only load in the browser

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

参阅

• :read-write
• HTML contenteditable attribute