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CSS Continued

CSS Continued. 1 February 2011. Agenda. Pseudo-elements Centering Tables Classes and ids. Pseudo-elements. Characteristics of tags that can have their own attributes In CSS: tag:pseudo -element In HTML: not visible Examples: a: hover, a:visited p:first-line, p:first-letter

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CSS Continued

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  1. CSS Continued 1 February 2011

  2. Agenda • Pseudo-elements • Centering • Tables • Classes and ids

  3. Pseudo-elements • Characteristics of tags that can have their own attributes • In CSS: tag:pseudo-element • In HTML: not visible • Examples: • a: hover, a:visited • p:first-line, p:first-letter • :before, :after • w3schools

  4. Centering • Generally margin-left: auto; margin-right: auto; • Images: need to add display: block;

  5. Tables • Need to format the parts • Borders • Centering tables vs. text

  6. Multiple Styles: Classes • HTML: class=“name” • Names may define format OR content • Either works • CAN apply multiple classes to the same tag • Multiple ways to define • Style that applies to many elements • Style that applies to only one element • Style that only applies in certain contexts

  7. Classes for many elements • HTML: class=“name” • CSS: .name • Particularly useful for color, font info, …

  8. Single Tag Selector • Can define it for a specific selector • Useful if you want to group attributes but slightly different • HTML: class=“name” • CSS: tag.name

  9. Nested Selector • Only applies within context • Avoids putting class= everywhere! • Useful for, • Define tr and td within a table class • Define links only within a list class • Define any formatting within a div • HTML: class=“name” only for encompassing • CSS: tag.name tag

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