Cosider one line bellow

<tr style="border: 20px dotted activeborder;">

Internet Explorer is not supporting this .

What shuld I do to get this code to be supported in IE ?

This code is rendered in my brewser,
when I tried to add the following properties to a grid view.

GridLines="Horizontal" RowStyle-BorderColor="ActiveBorder" RowStyle-BorderStyle="dotted" RowStyle- BorderWidth="1px" RowStyle-Wrap="true"

hope u can hel me