我有这个 html 标签
<a class="drop1" href="#div3" ><span>Services</span></a>
<div id="div1"> --- Some Code To be executed --- </div>
<div id="div2"> --- Some Code To be executed --- </div>
<div id="div3"> --- Some Code To be executed --- </div>
问题:我的问题是当我点击链接页面时应该向下滚动视差滚动。建议我简单的css代码。