鼠标经过放大二维码 

<style>
        .nodeSmall {
            width: 50px;
            height: 50px;
            background: url(../img/bgs.png) no-repeat -159px -51px;
            position: fixed;
            right: 10px;
            top: 40%;
        }
        .erweima {
            position: absolute;
            top: 0;
            left: -150px;
        }
        .nodeSmall a {
            display: block;
            width: 50px;
            height: 50px;
        }
        .hide {
            display: none;
        }

        .show {
            display: block;
        }
    </style>

</head>
<body>
<div class="nodeSmall" id="node_small">
    <a href="#"></a><!--锚定-->
    <div class="erweima hide" id="er">
        <img src="../img/456.png" alt=""/>
    </div>
</div>
<script>
    function lss(id) {
        return document.getElementById(id);
    }
    var aObj=lss("node_small").getElementsByTagName("a")[0];
    //为a注册鼠标进入
    aObj.onmouseenter=function () {
        lss("er").className="erweima show";
    };
    //为a注册鼠标离开
    aObj.onmouseout=function () {
        lss("er").className="erweima hide";
    };
</script>
posted @ 2018-11-30 20:59  lujieting0  阅读(384)  评论(0)  编辑  收藏  举报