Floats, Fonts, and Other Style Sheet Property References - More on Fonts
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font-stretch
IE n/a NN n/a Moz n/a Saf n/a Op n/a CSS <2.1
Inherited: Yes
Sets the rendered font to a letter-spacing relative of the specified font family.
CSS Syntax
font-stretch: stretchType | normal
Value
For an absolute size, one of the following constants: ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | extra-expanded | ultra-expanded . For a relative size, one of the following constants: narrower | wider .
Initial Value normal
Applies To All elements.
Object Model Reference
[window.]document.getElementById("elementID").style.fontStretch
font-style
IE 4 NN 4 Moz all Saf all Op all CSS 1
Inherited: Yes
Determines whether the element is rendered in a normal (Roman), italic, or oblique font style. If the font-family includes font faces labeled Italic and/or Oblique, the setting of the font-style property summons those particular font faces from the browser’s system. But if the specialized font faces are not available in the system, the normal font face is usually algorithmically slanted to look italic. Output sent to a printer with such font settings relies on the quality of arbitration between the client computer and printer to render an electronically generated italic font style. Although personal computer software typically includes other kinds of font rendering under the heading of “Style,” see font-variant and font-weight for other kinds of font “styles.”
CSS Syntax
font-style: fontStyle
Value
One of the following constants: normal | italic | oblique. Browsers tend to treat italic and oblique settings the same.
Initial Value normal
Example h2 em {font-style: italic}
Applies To All elements .
Object Model Reference
[window.]document.getElementById("elementID").style.fontStyle
font-variant
IE 4 NN n/a Moz all Saf 1.3/2 Op all CSS 1
Inherited: Yes
Determines whether the element should be rendered in all uppercase letters in such a way that lowercase letters of the source code are rendered in smaller uppercase letters. If a font family contains a small caps variant, the browser should use it automatically. More likely, however, the browser calculates a smaller size for the uppercase letters that take the place of source code lowercase letters. In practice, Internet Explorer for Windows prior to Version 6 renders the entire source code content as uppercase letters of the same size as the parent element’s font, regardless of the case of the source code.
CSS Syntax
font-variant: fontVariant
Value Any of the following constant values: normal | small-caps.
Initial Value normal
Example em {font-variant: small-caps}
Applies To All elements.
Alphabetical Property Reference
font-weight
Object Model Reference
[window.]document.getElementById("elementID").style.fontVariant
font-weight
IE 4 NN n/a Moz all Saf all Op all CSS 1
Inherited: Yes
Sets the weight (boldness) of the element’s font. CSS provides a weight rating scheme that is more granular than most browsers render on the screen, but the finely tuned weights may come into play when the content is sent to a printer. The scale is a numeric rating from 100 to 900 at 100-unit increments. Therefore, a font-weight of 100 is the least bold that can be displayed, whereas 900 is the boldest. A setting of normal (the default weight for any font) is equivalent to a font-weight value of 400 ; the standard bold setting is equivalent to 700 . Other settings ( bolder and lighter ) let you specify a weight relative to the parent element’s weight.
The CSS2 specification offers guidelines about how the weight values should correspond to font family names and internal characteristics of some font definition formats. For example, the OpenType font definition format provides slots for nine font weights. In this case, the numeric font-weight property values map directly to the weight definitions in that font. If the font family contains a face with a name that contains the word Medium and one labeled Book, Regular, Roman, or Normal, the Medium face is equated with a weight value of 500 (whereas the other is at 400 ). All font face names including the word Bold are equated with a weight of 700 . For font families that don’t have all nine weights assigned, the browser should do its best to interpolate, but it is very likely that some weight values generate fonts of the same weight as other values.
CSS Syntax
font-weight: fontWeight
Value
Any of the following constant values: bold | bolder | lighter | normal | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 .
Initial Value normal
Example p em {font-weight: bolder}
Applies To All elements.
Object Model Reference
[window.]document.getElementById("elementID").style.fontWeight
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 This article is excerpted from chapter four of Dynamic HTML: The Definitive Reference, Third Edition, written by Danny Goodman (O'Reilly; ISBN: 0596527403). Check it out today at your favorite bookstore. Buy this book now.
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