页面底部加入HTML代码:
<a id="go-top" href="#">Top</a>
body标签加一个ID:
<body id="home"> ... </body>
CSS:
#go-top{ display:none; position:fixed; bottom:10px; right:16px; z-index:99; background:#1BA1E2; text-align:center; text-transform:uppercase; font-size:11px; padding:10px 10px; color:#fff!important; border-radius: 10px; border-radius: 1rem; -webkit-box-shadow: rgba(0, 0, 0, 0.2) 0 0 0.2rem 0.1rem; -moz-box-shadow: rgba(0, 0, 0, 0.2) 0 0 0.2rem 0.1rem; box-shadow: rgba(0, 0, 0, 0.2) 0 0 0.2rem 0.1rem; } #go-top:hover{ text-decoration:none; background:#417196; }
JS:
<script> jQuery(document).ready(function($) { $(window).scroll(function() { if ($(window).scrollTop() > 200) { $("#go-top").fadeIn() } else { $("#go-top").fadeOut() } }); $body = (window.opera) ? (document.compatMode == "CSS1Compat" ? $('html') : $('body')) : $('html,body'); $('#go-top').click(function() { $body.animate({ scrollTop: $('#home').offset().top }, 400); return false }); })(jQuery); </script>