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ajax modalpopupextender panel width in different screen resolution

Posted By:      Posted Date: September 18, 2010    Points: 0   Category :ASP.Net
I have a modal pop up window I want to fix the panel width, but  when screen resolution is changed then panel width is also changed and the content is shown out of pop up window. Is there any way to fix the height and width keep fixed in different screen resolutions ?  

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