CSS and Mac on IE 5.0

Hello all,

My very first post here so go easy on me

I am trying to add border around the TD by using the following css:

.blueBorderLRTB {
padding: 1px;
border-left: 1px solid #20739E;
border-right: 1px solid #20739E;
border-top: 1px solid #20739E;
border-bottom: 1px solid #20739E;
}

HTML code:

<TD BGCOLOR="##FFFFFF" CLASS="blueBorderLRTB" ALIGN="right"><STRONG>Client:</STRONG></TD>

On my PC, the css is working correctly but on IE 5.0 on the Mac, I do not see the blue border. Is this css compatible with IE 5.0 on the Mac?? Or do I need to upgrade the browser version???

Many thanks for your help in advance.

Cheerio,

Chi.