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CSS

Class & ID Selectors, Font and List Properties. CSS. Id Selectors. # followed by Id-name (without space) Can be used once on a page Examples: #p1 { color: #000000; } same as p#p1 { color: #000000; }. Class Selectors. . followed by Class-name (without space)

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CSS

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  1. Class & ID Selectors, Font and List Properties CSS

  2. Id Selectors • # followed by Id-name (without space) • Can be used once on a page • Examples: • #p1 { color: #000000; } • same as • p#p1 { color: #000000; }

  3. Class Selectors • . followed by Class-name (without space) • Can be used multiple times on a page • Examples: • .pbold { font-style: bold; } • different from • p.pbold { font-style: bold; }

  4. Font Properties • font-family • font-size • font-style • font-variant • font-weight

  5. Absolute Versus Relative Size • Absolute: predefined meaning or understood real world equivalent • xx-small, x-small, small, medium, large, x-large, xx-large • cm, in, mm • pt (point = 1/72 of an inch) • pc (pica = 12 points)

  6. Absolute Versus Relative Size • Relative: based on size of something else • larger, smaller (relative to parent object) • em (appr. width of the letter “M” in a font) • ex (appr. height of the letter “x” in the font) • px (relative to display resolution) • % (relative to parent object)

  7. Font Sizes Recommendations • Avoid: pt, pc, mm, cm, in • Avoid pixels if accessibility is important (IE 5/6 have no zoom function) • Use combination of % and em • body {font-size: 76%}p {font-size: 1 em;}h1{font-size: 1.5 em;} • Please read: www.thenoodleincident.com/tutorials/box_lesson/font/index.html

  8. Font Properties • font-family • font-size • font-style • normal • italic (usually separate typeface) • oblique (normal font slanted) • font-variant • normal • small-caps • font-weight • font (shorthand property)

  9. Font Weight • normal • bold • bolder • lighter • 100, 200, 300, 400 (normal), to 900 • Browser support inconsistent, due to lack of available fonts

  10. Font Shorthand • selector { font: [ [ <'font-style'> || <'font-variant'> || <'font- weight'> ]? <'font-size'> [ / <'line-height'> ]? <'font- family'> ] } • If value is not specified  default value • Size and family must be specified • Example: • p { font: italic small-caps bold 1.5em/3em sans-serif } • h2 { font: 2em fantasy; }

  11. List Properties • list-style-type • For choosing a marker • disc, circle, square, • decimal, lower-roman, etc. • http://www.w3schools.com/css/css_reference.asp#list • list-style-position • Marker inside or outside content area • list-style-image • Images can be used as bullets • list-style (shorthand)

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