Cascading Style Sheets is one of the primary technologies used in the web. CSS provides the style/appearance aspect of your HTML.
{{Feature
|explainsimage= CSSCSS3 logo and wordmark.svg|descriptionimgdesc=Add custom CSS to pages or sitewideCSS3 logo|notestitle=|tests=|examples=the [[Rates]] page uses custom table layout and coloring. Without the CSS extension, this would be much harder to do.
}}
{{#set:feature description = Add custom CSS to pages or sitewide }}
{{#set:feature notes = Add CSS rules into your pages. }}
{{#set:feature tests = See schedule colors on the [[Rates]] page. }}
{{#set:feature examples = [[{{FULLPAGENAME}}#Example:_mobile_layout_with_2_columns]] }}
Cascading Style Sheets is one of the primary technologies used in the web. CSS provides the style/appearance aspect of your HTML.
WestCiv provides some really useful tools and examples of CSS in action. For example, you can make an [http://www.westciv.com/tools/gradientsnustyle/index.html#background-image:%20linear-gradient(%20#ffffff,%20#000000%2010px,#000000%2025px,#ffffff%2035px,#000000%2045px,#000000%2060px,#ffffff%2070px) 'equals' background effect].
== Example: mobile layout with 2 columns Useful Resources ==A change * [https://developer.mozilla.org/en-US/docs/Learn/CSS Learn CSS] from the go-to use percentages and 'em's instead of hard pixel widths or font size would achieve a more fluid layoutresource: Mozilla Developer Network (MDN)* [https://caniuse. Basically, always use em com/usage-table global browser usage comparison]* [http://getbem.com/introduction/ BEM] the Block Element Modifier convention for font sizeCSS rules* [https://www. Only use px when you know the exact dimensions of something sitepoint.com/optimizing-css-performance/ 20 tips for optimizing CSS] (like setting a negative margin for a graphic2018)by SitePoint
To really get what you want (a responsive layout that is designed to work well in print and a variety of devices), you should use the 'media' selector, in combination with 'media queries' <ref>good list of various approaches at https://gist.github.com/dustinboston/3867516 </ref>
CSS like the following would be good:
<source lang="css">
@media (min-width: 55em)
{
.main
{
float: left;
width: 65%;
margin-right: 5%;
margin-bottom: 1em;
}
.aside
{
float: left;
width: 30%;
margin-bottom: 1em;
}
}
</source>
Note how both columns are floated "left" which means that when your math or the browser isn't broken and the percentages <=100% they are side by side. This side-by-side layout is only applied to devices that have a screen width of 880 pixels <ref> 55em translates to 880px for the browser default font size of 16px. https://css-tricks.com/css-font-size/</ref>
Example at http://maxdesign.com.au/jobs/css-layouts/12-example-layout-two-full/ and source at https://github.com/russmaxdesign/example-layout-two-full{{References}}
{{References}}
[[Category:Web Development]]
[[Category:Design]]
[[Category:UI]]
[[Category:Style]]
