'border-bottom-width' Example
<html>
<head>
<style>
.style1 {
border:5px solid #cccccc;
border-bottom-width:6px;
font-family:verdana;
font-weight:bold
}
.style2 {
border:"none";
font-family:verdana;
font-weight:bold
}
</style>
</head>
<body>
Move mouse in and out to see the style change.
<div style="width:230;
height:100;
background-color:beige"
onmouseover="this.className='style1'"
onmouseout="this.className='style2'">This is a div element.
</div>
</body>
</html>
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