Атрибут font-weight

{ font-weight: normal| bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900}

Sets the weight (boldness) of the text.

IE currently only supports normal | bold.

This attribute is inherited.

Settings

If the value is a number, it is interpreted relative to the parent element's weight. A value of '1' suggests two jumps in the table corresponding to the keywords.

P { font-weight: medium }

B { font-weight: +1 } /* the '+' is optional */

In the example above, 'B' elements will be two table position "bolder" than their parent. If they are children of an 'P' element, the resulting value is 'bold'. Non-integer font weights are allowed.

If the desired font weight is not available, the UA selects an approximation strategy.