CSS font-size-adjust Property
 Complete CSS Reference
Definition
The ratio between the height of the font's lowercase letter "x" and the
height of the "font-size" is called a font's aspect value.
If the aspect value is high, the font will be legible when it is set to a smaller
size. For example: Verdana has an aspect value of 0.58 (means that when
font size is 100 px, its x-height is 58 px). Times New Roman has an aspect value of 0.46.
This means that Verdana is more legible at smaller sizes than Times New Roman.
The font-size-adjust property specifies an aspect value for an element that will preserve the x-height of the first-choice font.
Inherited: Yes
JavaScript Syntax
CSS properties can also be dynamically changed with a JavaScript.
Scripting Syntax: object.style.fontSizeAdjust="0.70"
In our HTML DOM tutorial you can find more details about the
fontSizeAdjust property.
In our HTML DOM tutorial you can also find a full
Style Object Reference.
Example
h2
{
font-size-adjust: 0.58
}
|
Possible Values
| Value |
Description |
| none |
Default. Do not preserve the font's x-height if
the font is unavailable |
| number |
Defines the aspect value ratio for the font
The formula to use:
font-size of first-choice font*(font-size-adjust/aspect value of available
font) = font-size to apply to available font
Example:
If 14px Verdana (aspect value of 0.58) was unavailable, but an available font had an aspect value of 0.46, the font-size of the substitute would be 14 * (0.58/0.46) =
17.65px
|
Try-It-Yourself Demos
Set the
size of the font using font-size-adjust
This example demonstrates how to set the size of a font using font-size-adjust.
Complete CSS Reference
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