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  • 滚动固定效果

    滚动固定效果:

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
    <style type="text/css">
    *{ margin:0px auto; padding:0px}
    #top{ 100%; height:200px; background-color:#F03}
    #menu{ 100%; height:50px; background-color:#60F}
    .item{ 200px; height:300px; background-color:#fF0; margin-top:30px; text-align:center; line-height:300px; vertical-align:middle}
    </style>
    </head>
    
    <body>
    <div id="top"></div>
    <div id="menu"></div>
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
    <div class="item">5</div>
    <div class="item">6</div>
    <div class="item">7</div>
    <div class="item">8</div>
    <div class="item">9</div>
    <div class="item">10</div>
    <div class="item">11</div>
    </body>
    <script type="text/javascript">
    //添加一个滚动条监听事件
    window.onscroll = function(){
        var m = document.getElementById("menu");
        if(window.scrollY>=200){
            m.style.position="fixed";
            m.style.top="0px";     
        }else{
            m.style.position="";
        }
    }
    </script>
    </html>

    效果图:

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  • 原文地址:https://www.cnblogs.com/Whitehat/p/8125518.html
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