The style declarations which apply to the text below are:

BODY {font-size: 12px;}
.one {font: italic small-caps 13pt Helvetica;}
.two {font: 150%/150% serif;}
.three {font: 150%/150% sans-serif;}
.four {font: small/200% cursive;}
.five {font: italic small-caps 900 150%/150% sans-serif;}
.six {font: italic small-caps 100 150%/300% sans-serif;}
.seven {font: italic small-caps 900 150%/2em monospace;}
.eight {font: italic small-caps 500 150%/1in sans-serif;}
.nine {font: oblique normal 700 18px/200% sans-serif;}
.ten {font: normal 400 80%/2.5 sans-serif;}
SPAN.color {background-color: silver;}

This element is unstyled, and should inherit a font-size of 12px from the BODY element. This is the "base font size" referred to in the following tests.

This element should be 13pt. Helvetica which is in small-cap italics.

This element should be in a serif font. Its font-size should be 150% the base font size, and its line-height should 150% of that value (18px and 27px, respectively). Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font. Its font-size should be 150% the base font size, and its line-height should 150% of that value (18px and 27px, respectively). Extra text is included for the purposes of testing this more effectively.

This element should be in a cursive font, 'small' in size, with a line-height 200% the height of the text's actual size. For example, if the font-size value small is calculated at 10px, then the line-height should be 20px. The actual value of the font-size is UA-dependent. Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, italicized and small caps, with a weight of 900. Its font-size should be 150% the base font size, and its line-height should be 150% of that value (18px and 27px, respectively). Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, italicized and small caps, with a weight of 100. Its font-size should be 150% the base font size, and its line-height should be 300% of that value (18px and 54px, respectively). Extra text is included for the purposes of testing this more effectively.

This element should be in a monospace font, italicized and small caps, with a weight of 900. Its font-size should be 150% the base font size, and its line-height should be 2em, or twice the element's font size (18px and 36px, respectively). Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, italicized and small caps, with a weight of 500. Its font-size should be 150% the base font size, or 18px, and its line-height should be 1in. Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, oblique and not small-caps, with a weight of 700. Its font-size should be 18 pixels, and its line-height should be 36px (200% this element's font size). Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, with a weight of 400. Its font-size should be 80% of 12px, or 9.6px, and its line-height shoud be 2.5 times that, or 24px. Extra text is included for the purposes of testing this more effectively.

This element should be in a sans-serif font, italicized and small caps, with a weight of 100. Its font-size should be 150% the base font size, and its line-height should be 300% of that value (18px and 54px, respectively). The text should have a silver background. The background color has been set on an inline element and should therefore only cover the text, not the interline spacing.