CSS border-top-width Property - Playground Example

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.border {
   border: 1px solid blue;
   border-top-style: solid;
   border-top-width: 3px;
   border-top-color: red;
   margin: 20px;
   padding: 20px;
}
</style>
</head>
<body>
<div class="border">This is an example of the border-top-width property using a red solid border 3px in width.</div>
</body>
</html>