:disabled

:disabled  CSS 伪类表示任何被禁用的元素。如果一个元素不能被激活(如选择、点击或接受文本输入)或获取焦点,则该元素处于被禁用状态。元素还有一个启用状态(enabled state),在启用状态下,元素可以被激活或获取焦点。

 

/* Selects any disabled <input> */
input:disabled {
  background: #ccc;
}

 

语法

Error: could not find syntax for this item

示例

这个例子显示基本的购物表单。通过使用 JavaScript change (en-US) 事件让用户启用/禁用付款字段。

HTML

<form action="#">
  <fieldset id="shipping">
    <legend>Shipping address</legend>
    <input type="text" placeholder="Name">
    <input type="text" placeholder="Address">
    <input type="text" placeholder="Zip Code">
  </fieldset>
  <br>
  <fieldset id="billing">
    <legend>Billing address</legend>
    <label for="billing_is_shipping">Same as shipping address:</label>
    <input type="checkbox" id="billing-checkbox" checked>
    <br>
    <input type="text" placeholder="Name" disabled>
    <input type="text" placeholder="Address" disabled>
    <input type="text" placeholder="Zip Code" disabled>
  </fieldset>
</form>

CSS

input[type="text"]:disabled {
  background: #ccc;
}

JavaScript

// Wait for the page to finish loading
document.addEventListener('DOMContentLoaded', function () {
  // Attach `change` event listener to checkbox
  document.getElementById('billing-checkbox').onchange = toggleBilling;
}, false);

function toggleBilling() {
  // Select the billing text fields
  var billingItems = document.querySelectorAll('#billing input[type="text"]');

  // Toggle the billing text fields
  for (var i = 0; i < billingItems.length; i++) {
    billingItems[i].disabled = !billingItems[i].disabled;
  }
}

结果

 

规范

Specification Status Comment
HTML Living Standard
:disabled
Living Standard No change.
HTML5
:disabled
Recommendation Defines the semantic regarding HTML and forms.
Selectors Level 4
:disabled
Working Draft No change.
CSS Basic User Interface Module Level 3
:disabled
Recommendation Link to Selectors Level 3.
Selectors Level 3
:disabled
Recommendation Defines the pseudo-class, but not the associated semantic.

浏览器兼容性

BCD tables only load in the browser

相关链接