Opacity Attribute (Stroke)(VML)

This topic describes VML, a feature that is deprecated as of Windows Internet Explorer 9. Webpages and applications that rely on VML should be migrated to SVG or other widely supported standards.


As of December 2011, this topic has been archived. As a result, it is no longer actively maintained. For more information, see Archived Content. For information, recommendations, and guidance regarding the current version of Windows Internet Explorer, see Internet Explorer Developer Center.


Defines the amount of transparency of a stroke. Read/write. VgFraction.

Applies To


Tag Syntax

<v: element opacity=" expression ">

Script Syntax

element .opacity="expression"



The default value is 1.0.

VML Standard Attribute


The stroke is 50% transparent.

   <v:shape id="rect01"
   strokecolor="red" fillcolor="red"
   path="m 1,1 l 1,200, 200,200, 200,1 x e">
   <v:stroke opacity="50%"/>