2. A CSS file consists of rule sets. H1 { color: navy; } selector property value Within the brackets are one or more rules /*This rule adjust the styles for the headings */ A simple CSS document with comments

6. Useful if you want a web page to specifically be formatted for printing as a document. BBC News

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10. To specify an absolute measurement, you can use pixels or points. To specify a relative measurement, you can use ems or percents.

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14. Slide 14 With an RGB (red-green-blue) value H1 {color: rgb (100%, 40%, 20%); }

15. Slide 15 http://www.w3.org/TR/css3-color http://www.colorpicker.com/

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