<!DOCTYPE html>
<html>
<head>
<style>
h1 {
border-left-style: solid;
border-left-color: hsl(89, 43%, 51%);
}
div {
border-style: solid;
border-left-color: hsl(89, 43%, 51%);
}
</style>
</head>
<body>
<h1>A heading with a colored left border</h1>
<div>The border-left-color can be specified with a HSL value.</div>
<p><strong>Note:</strong> Always declare the border-left-style or the border-style property before the border-left-color property. An element must have a border before you can change the color.</p>
</body>
</html>