#backTop i,#callSurvey i{background:url(survey.png) no-repeat;}
#pubFeedBack{position:fixed;_position:absolute;right:15px;bottom:15px;width:54px;font-size:12px;}
#backTop,#callSurvey{display:block;width:52px;padding:1px;height:56px;line-height:22px;text-align:center;color:#fff;text-decoration:none;}
#backTop{display:none;background:#999;}
#backTop:hover{background:#ccc;zoom:1;text-decoration:none;color:#fff;}
#backTop i{display:block;width:25px;height:13px;margin:14px auto 8px;background-position:-63px 0;}
#callSurvey{margin-top:1px;background:#3687d9;}
#callSurvey:hover{background:#66a4e3;zoom:1;text-decoration:none;color:#fff;}
#callSurvey i{display:block;width:26px;height:25px;margin:9px auto 0;background-position:0 0;}
#callSurvey:hover i{background-position:-30px 0;}
代码很简单，各位直接拿去，放在自己项目中即可，如有bug请给我留言，共同完善
方法二：
主要参数：
scrollName: 'scrollUp', // Element ID
topDistance: '300', // Distance from top before showing element (px)
topSpeed: 300, // Speed back to top (ms)
animation: 'fade', // Fade, slide, none
animationInSpeed: 200, // Animation in speed (ms)
animationOutSpeed: 200, // Animation out speed (ms)
scrollText: 'Scroll to top', // Text for element
activeOverlay: false,
// 帮助定位“回到顶端”按钮出现时滚动到的页面位置。
jquery代码（ScrollUp.js）：
$(function () { $.scrollUp({ scrollName: 'scrollUp', // Element ID topDistance: '300', // Distance from top before showing element (px) topSpeed: 300, // Speed back to top (ms) animation: 'fade', // Fade, slide, none animationInSpeed: 200, // Animation in speed (ms) animationOutSpeed: 200, // Animation out speed (ms) scrollText: 'Scroll to top', // Text for element activeOverlay: false, // set css color to display scrollup active point, e.g '#00ffff' }); });
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