HTML/CSS/CSS Attributes and Javascript Style Properties/border top width
"border-top-width" Example
<html>
<head>
<style>
.style1 {
border:5px solid #cccccc;
border-top-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>
Border width setting for four directions
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>border-width</title>
<style rel="stylesheet" type="text/css">
div {
padding: 3px;
border-color: khaki;
border-style: solid;
background: lightyellow;
margin: 5px;
float: left;
width: 50px;
height: 50px;
}
div#properties {
border-top-width: 2px;
border-right-width: 4px;
border-bottom-width: 8px;
border-left-width: 10px;
}
</style>
</head>
<body>
<div id="properties"></div>
</body>
</html>