CSS: Difference between revisions

Latest revision as of 14:19, 16 July 2020

CSS
CSS3 logo
Image shows:	CSS3 logo
Summary
Description:	Add custom CSS to pages or sitewide
More
Notes:	Add CSS rules into your pages.
Test:	See schedule colors on the Rates page.
Example:	CSS#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 'equals' background effect.

Useful Resources[edit]

Learn CSS from the go-to resource: Mozilla Developer Network (MDN)
global browser usage comparison
BEM the Block Element Modifier convention for CSS rules
20 tips for optimizing CSS (2018) by SitePoint

References[edit]

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 |image=CSS3 logo and wordmark.svg
 |imgdesc=CSS3 logo
-|title={{PAGENAME}}
+|title=CSS
-|template=Linked_feature_image
-|format=template
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 {{#set:feature description = Add custom CSS to pages or sitewide }}
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 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(90deg,%20#ffffff,%20#000000%2010px,#000000%2025px,#ffffff%2035px,#000000%2045px,#000000%2060px,#ffffff%2070px) 'equals' background effect].
+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].
-https://caniuse.com is the site to go to for browser support (and global usage)
+== Useful Resources ==
+* [https://developer.mozilla.org/en-US/docs/Learn/CSS Learn CSS] from the go-to resource: Mozilla Developer Network (MDN)
+* [https://caniuse.com/usage-table global browser usage comparison]
+* [http://getbem.com/introduction/ BEM] the Block Element Modifier convention for CSS rules
+* [https://www.sitepoint.com/optimizing-css-performance/ 20 tips for optimizing CSS] (2018) by SitePoint
-<br clear="all">
-== 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)
-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