Preserves useful defaults, unlike many CSS resets.
Normalizes styles for a wide range of elements.
Corrects bugs and common browser inconsistencies.
Improves usability with subtle modifications.
Explains what code does using detailed comments.
Browser support
Chrome
Edge
Firefox ESR+
Internet Explorer 10+
Safari 8+
Opera
Extended details and known issues
Additional detail and explanation of the esoteric parts of normalize.css.
pre, code, kbd, samp
The font-family: monospace, monospace hack fixes the inheritance and scaling
of font-size for preformatted text. The duplication of monospace is
intentional. Source.
sub, sup
Normally, using sub or sup affects the line-box height of text in all
browsers. Source.
select
By default, Chrome on OS X and Safari on OS X allow very limited styling of
select, unless a border property is set. The default font weight on optgroup
elements cannot safely be changed in Chrome on OSX and Safari on OS X.
[type="checkbox"]
It is recommended that you do not style checkbox and radio inputs as Firefox's
implementation does not respect box-sizing, padding, or width.
[type="number"]
Certain font size values applied to number inputs cause the cursor style of the
decrement button to change from default to text.
[type="search"]
The search input is not fully stylable by default. In Chrome and Safari on
OSX/iOS you can't control font, padding, border, or background. In
Chrome and Safari on Windows you can't control border properly. It will apply
border-width but will only show a border color (which cannot be controlled)
for the outer 1px of that border. Applying -webkit-appearance: textfield
addresses these issues without removing the benefits of search inputs (e.g.
showing past searches).
Contributing
Please read the contribution guidelines in order to make the
contribution process easy and effective for everyone involved.
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