|explains= CSS
|description=Add custom CSS to pages or sitewide
|notes=Add CSS rules into your page with a parser hook: <nowiki>{{#css:rules here}}</nowiki>
|tests=
|examples=the [[Rates]] page uses custom table layout and coloring. Without the CSS extension, this would be much harder to do.
}}
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== Example: mobile layout with 2 columns ==
A change to use percentages and 'em's instead of hard pixel widths or font size would achieve a more fluid layout. Basically, always use em for font size. Only use px when you know the exact dimensions of something (like setting a negative margin for a graphic)
{{References}}
[[Category:Web Development]]
[[Category:Design]]
[[Category:UI]]
[[Category:Style]]