简介：
一款好看的返回顶部动画酷炫小火箭发射代码
代码：
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery火箭图标返回顶部代码</title>
<script src="https://lib.hackeus.cn/static/js/jquery-3.6.0.min.js" type="text/javascript"></script>
<style type="text/css">
body{height:3000px;}
/*回到顶部*/
#rocket-to-top div {
left: 0;
margin: 0;
overflow: hidden;
padding: 0;
position: absolute;
top: 0;
width: 149px;
}
#rocket-to-top .level-2 {
background: url("http://lib.hackeus.cn/static/images/o_o_rocket_button_up.png") no-repeat scroll -149px 0 transparent;
display: none;
height: 250px;
opacity: 0;
z-index: 1;
}
#rocket-to-top .level-3 {
background: none repeat scroll 0 0 transparent;
cursor: pointer;
display: block;
height: 150px;
z-index: 2;
}
#rocket-to-top {
background: url("http://lib.hackeus.cn/static/images/o_o_rocket_button_up.png") no-repeat scroll 0 0 transparent;
cursor: default;
display: block;
height: 250px;
margin: -125px 0 0;
overflow: hidden;
padding: 0;
position: fixed;
right: 0;
top: 80%;
width: 149px;
z-index: 11;
}
</style>
<script type="text/javascript">
// jQuery火箭图标返回顶部代码
$(function() {
var e = $("#rocket-to-top"),
t = $(document).scrollTop(),
n,
r,
i = !0;
$(window).scroll(function() {
var t = $(document).scrollTop();
t == 0 ? e.css("background-position") == "0px 0px" ? e.fadeOut("slow") : i && (i = !1, $(".level-2").css("opacity", 1), e.delay(100).animate({
marginTop: "-1000px"
},
"normal",
function() {
e.css({
"margin-top": "-125px",
display: "none"
}),
i = !0
})) : e.fadeIn("slow")
}),
e.hover(function() {
$(".level-2").stop(!0).animate({
opacity: 1
})
},
function() {
$(".level-2").stop(!0).animate({
opacity: 0
})
}),
$(".level-3").click(function() {
function t() {
var t = e.css("background-position");
if (e.css("display") == "none" || i == 0) {
clearInterval(n),
e.css("background-position", "0px 0px");
return
}
switch (t){
case "0px 0px":
e.css("background-position", "-298px 0px");
break;
case "-298px 0px":
e.css("background-position", "-447px 0px");
break;
case "-447px 0px":
e.css("background-position", "-596px 0px");
break;
case "-596px 0px":
e.css("background-position", "-745px 0px");
break;
case "-745px 0px":
e.css("background-position", "-298px 0px");
}
}
if (!i) return;
n = setInterval(t, 50),
$("html,body").animate({scrollTop: 0},"slow");
});
});
</script>
</head>
<body>
<center>
<h2>HackeUs火箭图标返回顶部代码</h2>
<h3>滚动滑动条后，查看右下角查看效果。很炫哦！！</h3>
</center>
<!-- 火箭 -->
<div style="display: none;" id="rocket-to-top">
<div style="opacity:0;display: block;" class="level-2"></div>
<div class="level-3"></div>
</div>
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>适用浏览器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗.</p>
</div>
</body>
</html>
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