<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>toTop</title>
<style type="text/css">
*{
margin:0;
padding: 0;
}
html{
height: 100%;
}
.toTopBtn{
position: fixed;
bottom: 100px;
right: 100px;
background: #333;
color: #fff;
padding: 5px 10px;
cursor: pointer;
display: none;
}
</style>
</head>
<body>
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<script type="text/javascript" src="http://vscss.com/dm/jquery.js"></script>
<script type="text/javascript">
$(function(){
var toTop = $("<span class=‘toTopBtn‘>返回顶部</span>");
$(‘body‘).append(toTop);
$(window).scroll(function(event) {
if($(window).scrollTop()>100){
$(‘.toTopBtn‘).fadeIn();
}else{
$(‘.toTopBtn‘).fadeOut();
}
});
$(‘.toTopBtn‘).click(function(){
$(‘html,body‘).animate({
scrollTop:0
},200);
//return false;
});
});
</script>
</body>
</html>
时间： 2024-10-09 22:16:19