The :root
CSS pseudo-class matches the root element of a tree representing the document. In HTML, :root
represents the <html>
element and is identical to the selector html
, except that its specificity is higher.
/* Selects the root element of the document */ /* <html> in the case of HTML */ :root { background: yellow; }
Syntax
How to read CSS syntax.:root
Example
:root
can be useful for declaring global CSS variables:
:root { --main-color: hotpink; --pane-padding: 5px 42px; }
Specifications
Specification | Status | Comment |
---|---|---|
Selectors Level 4 The definition of ':root' in that specification. |
Working Draft | No change |
Selectors Level 3 The definition of ':root' in that specification. |
Recommendation | Initial definition |
Browser compatibility
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mfluehr,
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Last updated by:
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