<!DOCTYPE html>
<html>
    <style>
        .container {
            position: absolute;
            overflow: hidden;
            width: 720px;
            height: 540px;
            background-color: green;
        }
        .inner {
            position: absolute;
            width: 360px;
            height: 10540px;
            top: -10000px;
            background-color: red;
        }
    </style>
    <div class=container>
        <div class=inner>
        </div>
    </div>
</html>