Hover

Show and hide the element when the cursor is over it.

Attribute	Type	Default	Description
on	STRING	both	Action to perform when the cursor is in the area. Either show or hide
duration	INTEGER	0	Duration of the appear/fade transition in milliseconds (ms)
from	INTEGER	0	Transparency when the cursor is not over the element from 0 to 100
to	INTEGER	100	Transparency when the cursor is over the element from 0 to 100
tolerance	INTEGER	0	Expands the area on each side (in pixels)

Example

<behavior name="fx4" fx="hover" />