Property Description

The font-size-adjust property sets the aspect ratio for the font. The aspect ratio is equal to the x-height of a font divided by the font size.

This property has the following syntax:

font-size-adjust: none|ratio|initial|inherit;

The purpose of this property is to maintain the readability of text when font fallback occurs. This is achieved by adjusting the font-size so that the x-height is the same regardless of the font used.

Property Values

Value	Description
none	(default) Do not preserve the current specified font's x-height if the font is not available.
ratio	Sets the aspect ratio for the font
initial	Specifies that the value of the property should be set to the default value
inherit	Specifies that the value of the property should be inherited from the parent element

Examples

This example sets the font aspect ratio for all h1 elements.

h1 {
  font-size-adjust:0.60;
}

Browser Support

Chrome	Firefox	IE	Safari	Opera
	3.0

Miscellaneous Information

Inherited:	Yes
Defined In:	CSS3
Default Value:	none