Cascade Style Sheets

Cascade Style Sheets (CSS)

A CSS is made up of two parts: the selector and declaration. The selector states which tag the rule applies. The declaration stats what happens when the rule is applied.

The declaration is made up of two elements: a property and value. A declaration must end with a semicolon.

Multiple declarations can be contained in a single rule.

Multiple selectors can be contained in a single rule. A comma must be used after each selector except the last.

h1, h2, h3 {color:red; font-weight:bold;}

Multiple rules can be applied to the same selector.

h1, h2, h3 {color:red; font-weight:bold;}

h3 {font-style:italic;}

Selectors

Selectors

Adding Styles to Web pages

Adding Styles to Web pages

Psuedo Elements and Classes

Psuedo Elements and Classes

Cascade and Rule Declarations

Cascade and Rule Declarations

Styling Fonts and Text

Styling Fonts and Text

Positioning Elements aka The Box

Positioning Elements

Basic Page Layout

Basic Page Layout

Tips creating styles

To eliminate the difference between user agents always zero out margins and padding on all elements.

Example:

* {margin:0; padding:0;}

Helpful links

Cascading Style Sheets home page

Cascading Style Sheets Current Work

Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification

Cascading Style Sheets, level 2 CSS2 Specification

Cascading Style Sheets, level 1 CSS1 Specification

CSS Menu Maker

Interesting CSS resources

Viewport Units vm vh vmin vmax

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