HTML border-bottom property with L&R padding

<!DOCTYPE html>
<html>
<head>
<style>
p {
    padding-left: 50px;
    padding-right: 50px;
    border-bottom: 6px solid red;
    background-color: lightgrey;
}
</style>
</head>
<body>

<h2>The border-bottom Property</h2>
<p>This property is a shorthand property for border-bottom-width, border-bottom-style, and border-bottom-color.</p>

</body>
</html>