9.display.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS - Display</title>
    <style>
         .box {
            width: 50%;
            height: 100px;
        }
        .box-1 {
            background: red;
        }
        .box-2{
            background: blue;
        } 

        #test-link {
            display: inline-block;
            background: #a7a7a7;
            width: 100px;
            height: 100px;
        }


    </style>
</head>
<body>

<a href="#" id="test-link">Test Link</a>    
    <!-- <div class="box box-1"></div>
    <div class="box box-2"></div> -->
</body>
</html>