index.md

---

title: ":-moz-first-node"
slug: Web/CSS/:-moz-first-node
page-type: css-pseudo-class
status:
  - non-standard

---

{{Non-standard_header}}{{CSSRef}}

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 {{Cssxref(":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

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

Examples

CSS

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

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

{{EmbedLiveSample("Examples")}}

Specifications

Not part of any standard.

See also

• {{cssxref(":-moz-last-node")}}

• {{cssxref(":first-child")}}