WebAnimator.OpacitySupported
From Xojo Documentation
Read-Only Property (As Boolean )
BooleanValue = aWebAnimator.OpacitySupported
New in 2010r4
Supported for all project types and targets.
New in 2010r4
Supported for all project types and targets.
Returns True if opacity animation is supported by the web browser. If False, the Opacity method does nothing.
Sample Code
Only change the opacity if the browser supports it: