scripting - CSS: Cascading Style Sheets 编辑

The scripting CSS media feature can be used to test whether scripting (such as JavaScript) is available.

Syntax

The scripting feature is specified as a keyword value chosen from the list below.

none

Scripting is completely unavailable on the current document.

initial-only

Scripting is enabled during the initial page load, but not afterwards.

enabled

Scripting is supported and active on the current document.

Examples

HTML

<p class="script-none">You do not have scripting available. :-(</p>
<p class="script-initial-only">Your scripting is only enabled during the initial page load. Weird.</p>
<p class="script-enabled">You have scripting enabled! :-)</p>

CSS

p {
  color: lightgray;
}

@media (scripting: none) {
  .script-none {
     color: red;
  }
}

@media (scripting: initial-only) {
  .script-initial-only {
    color: red;
  }
}

@media (scripting: enabled) {
  .script-enabled {
    color: red;
  }
}

Result

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Using Media Queries
• @media