:read-only

 :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

参阅