@mixin important-text {
color: red;
font-size: 25px;
font-weight: bold;
border: 1px solid blue;
}
.danger {
@include important-text;
background-color: green;
}
.danger {
color: red;
font-size: 25px;
font-weight: bold;
border: 1px solid blue;
background-color: green;
}
<!DOCTYPE html>
<html>
<link rel="stylesheet" href="mystyle.css">
<body>
<h1>Hello World</h1>
<p class="danger">Warning! This is some text.</p>
</body>
</html>
