To set the color, let's add red
at the end of the value of border.
We can make this border red by setting the color value to red
.
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1 class="caution"> BREAKING NEWS!!! </h1>
</body>
.caution {
border: solid 10px red;
}