<html>
<head>
<style>
h1 {
border-style: solid;
border-width: 10px 1px;
}
div {
border-style: solid;
border-width: 10px 1px;
}
</style>
</head>
<body>
<h1>A heading with a 10px top and bottom border and 1px left and right border</h1>
<div>A div element with a 10px top and bottom border and 1px left and right border</div>
<p><strong>Note:</strong> The border-width property does not work if it is used alone. Use the border-style property to set the border first.</p>
</body>
</html>