:read-only

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2020.

: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）。

css
/* 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;
}

备注： 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

Error: could not find syntax for this item

示例

HTML

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

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;
}

结果

规范

Specification
HTML
# selector-read-only
Selectors Level 4
# read-only-pseudo

浏览器兼容性

参见