jquery点击回到顶部
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2022-08-31 12:36:35
jquery实现点击回到顶部 ......
jquery实现点击回到顶部
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>回到顶部</title>
<meta name="viewport" content="width=1200, maximum-scale=1.0, user-scalable=1">
<style>
.scrolltotop{
display: block;
width: 42px;
height: 42px;
position: fixed;
bottom: 5%;
right: 2%;
display: none;
font-size: 40px;
background: #232323;
color: #ebebeb;
border-radius: 3px;
text-align: center;
line-height: 38px;
z-index: 999;
}
.scrolltotop i img{margin:9px 0px 0px 2px;}
</style>
</head>
<body style="height:2000px">
<a href="#" title="sroll" class="scrolltotop"><i><img src="https://www.cnblogs.com/images/cnblogs_com/wrongcode/1426773/o_uptop0.png" alt=""></i></a>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript">
$(window).scroll(function() {
if ($(this).scrolltop() > 300) {
$('.scrolltotop').fadein();
} else {
$('.scrolltotop').fadeout();
}
});
$('.scrolltotop').on("click", function() {
$('html, body').animate({
scrolltop: 0
}, 800);
return false;
});
</script>
</body>
</html>
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