<!DOCTYPE html>

<html>
<head>
    <style>
    .landing {
        width: 300px;
        overflow: hidden;
        border: 1px solid black;
    }
    
    .contents {
        height: 300px;
        background-color: gray;
    }
    </style>
</head>
<body>

<div class="landing">
    <div class="contents">
        
    </div>
</div>
</body>
</html>