固定在左右两侧不动的广告条 样式

<style type="text/css">
        .d1
        {
             120px;
            height: 360px;
            background: #ccc;
            position: fixed;
            top: 120px;
            left: 10px;
        }
        .d2
        {
             120px;
            height: 360px;
            background: red;
            position: fixed;
            top: 120px;
            right: 10px;
        }
    </style>