:-moz-first-node

Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The :-moz-first-node CSS pseudo-class is a Mozilla extension that represents any element that is the first child node of some other element. It differs from :first-child because it does not match a first-child element with (non-whitespace) text before it.

Note: Any whitespace at the start of an element is ignored for the determination of :-moz-first-node.

Syntax

css
:-moz-first-node {
  /* ... */
}

Examples

CSS

css
span:-moz-first-node {
  background-color: lime;
}

HTML

html
<p>
  <span>This matches!</span>
  <span>This doesn't match.</span>
</p>

<p>
  Blahblah.
  <span>This doesn't match because it's preceded by text.</span>
</p>

Result

Specifications

Not part of any standard.

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
:-moz-first-node
ExperimentalNon-standard

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.
Non-standard. Check cross-browser support before using.

See also