给自己网站放一个返回顶部js特效效果把，主要是图片素材也不错，比较抢镜，所以弄个小教程，比较简单，放上去试试看把！
首先，主要代码如下
<div class="back-to-top cd-top faa-float animated" ></div>这里代码放在，一般是底部foot的文件里面，具体位置底部就行，faa-float是自然状态的摇曳抖动的效果。
- css文件：
/*gotop*/
@media (max-width:1000px){.back-to-top{display:none!important;}}
@-webkit-keyframes wrench{0%{-webkit-transform:rotate(-12deg);transform:rotate(-12deg)}8%{-webkit-transform:rotate(12deg);transform:rotate(12deg)}10%{-webkit-transform:rotate(24deg);transform:rotate(24deg)}18%,20%{-webkit-transform:rotate(-24deg);transform:rotate(-24deg)}28%,30%{-webkit-transform:rotate(24deg);transform:rotate(24deg)}38%,40%{-webkit-transform:rotate(-24deg);transform:rotate(-24deg)}48%,50%{-webkit-transform:rotate(24deg);transform:rotate(24deg)}58%,60%{-webkit-transform:rotate(-24deg);transform:rotate(-24deg)}68%{-webkit-transform:rotate(24deg);transform:rotate(24deg)}100%,75%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}}@keyframes wrench{0%{-webkit-transform:rotate(-12deg);-ms-transform:rotate(-12deg);transform:rotate(-12deg)}8%{-webkit-transform:rotate(12deg);-ms-transform:rotate(12deg);transform:rotate(12deg)}10%{-webkit-transform:rotate(24deg);-ms-transform:rotate(24deg);transform:rotate(24deg)}18%,20%{-webkit-transform:rotate(-24deg);-ms-transform:rotate(-24deg);transform:rotate(-24deg)}28%,30%{-webkit-transform:rotate(24deg);-ms-transform:rotate(24deg);transform:rotate(24deg)}38%,40%{-webkit-transform:rotate(-24deg);-ms-transform:rotate(-24deg);transform:rotate(-24deg)}48%,50%{-webkit-transform:rotate(24deg);-ms-transform:rotate(24deg);transform:rotate(24deg)}58%,60%{-webkit-transform:rotate(-24deg);-ms-transform:rotate(-24deg);transform:rotate(-24deg)}68%{-webkit-transform:rotate(24deg);-ms-transform:rotate(24deg);transform:rotate(24deg)}100%,75%{-webkit-transform:rotate(0deg);-ms-transform:rotate(0deg);transform:rotate(0deg)}}.faa-parent.animated-hover:hover>.faa-wrench,.faa-wrench.animated,.faa-wrench.animated-hover:hover{-webkit-animation:wrench 2.5s ease infinite;animation:wrench 2.5s ease infinite;transform-origin-x:90%;transform-origin-y:35%;transform-origin-z:initial}.faa-parent.animated-hover:hover>.faa-wrench.faa-fast,.faa-wrench.animated-hover.faa-fast:hover,.faa-wrench.animated.faa-fast{-webkit-animation:wrench 1.2s ease infinite;animation:wrench 1.2s ease infinite}.faa-parent.animated-hover:hover>.faa-wrench.faa-slow,.faa-wrench.animated-hover.faa-slow:hover,.faa-wrench.animated.faa-slow{-webkit-animation:wrench 3.7s ease infinite;animation:wrench 3.7s ease infinite}@-webkit-keyframes ring{0%{-webkit-transform:rotate(-15deg);transform:rotate(-15deg)}2%{-webkit-transform:rotate(15deg);transform:rotate(15deg)}4%{-webkit-transform:rotate(-18deg);transform:rotate(-18deg)}6%{-webkit-transform:rotate(18deg);transform:rotate(18deg)}8%{-webkit-transform:rotate(-22deg);transform:rotate(-22deg)}10%{-webkit-transform:rotate(22deg);transform:rotate(22deg)}12%{-webkit-transform:rotate(-18deg);transform:rotate(-18deg)}14%{-webkit-transform:rotate(18deg);transform:rotate(18deg)}16%{-webkit-transform:rotate(-12deg);transform:rotate(-12deg)}18%{-webkit-transform:rotate(12deg);transform:rotate(12deg)}100%,20%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}}@keyframes ring{0%{-webkit-transform:rotate(-15deg);-ms-transform:rotate(-15deg);transform:rotate(-15deg)}2%{-webkit-transform:rotate(15deg);-ms-transform:rotate(15deg);transform:rotate(15deg)}4%{-webkit-transform:rotate(-18deg);-ms-transform:rotate(-18deg);transform:rotate(-18deg)}6%{-webkit-transform:rotate(18deg);-ms-transform:rotate(18deg);transform:rotate(18deg)}8%{-webkit-transform:rotate(-22deg);-ms-transform:rotate(-22deg);transform:rotate(-22deg)}10%{-webkit-transform:rotate(22deg);-ms-transform:rotate(22deg);transform:rotate(22deg)}12%{-webkit-transform:rotate(-18deg);-ms-transform:rotate(-18deg);transform:rotate(-18deg)}14%{-webkit-transform:rotate(18deg);-ms-transform:rotate(18deg);transform:rotate(18deg)}16%{-webkit-transform:rotate(-12deg);-ms-transform:rotate(-12deg);transform:rotate(-12deg)}18%{-webkit-transform:rotate(12deg);-ms-transform:rotate(12deg);transform:rotate(12deg)}100%,20%{-webkit-transform:rotate(0deg);-ms-transform:rotate(0deg);transform:rotate(0deg)}}.faa-parent.animated-hover:hover>.faa-ring,.faa-ring.animated,.faa-ring.animated-hover:hover{-webkit-animation:ring 2s ease infinite;animation:ring 2s ease infinite;transform-origin-x:50%;transform-origin-y:0;transform-origin-z:initial}.faa-parent.animated-hover:hover>.faa-ring.faa-fast,.faa-ring.animated-hover.faa-fast:hover,.faa-ring.animated.faa-fast{-webkit-animation:ring 1s ease infinite;animation:ring 1s ease infinite}.faa-parent.animated-hover:hover>.faa-ring.faa-slow,.faa-ring.animated-hover.faa-slow:hover,.faa-ring.animated.faa-slow{-webkit-animation:ring 3s ease infinite;animation:ring 3s ease infinite}@-webkit-keyframes vertical{0%{-webkit-transform:translate(0,-3px);transform:translate(0,-3px)}4%{-webkit-transform:translate(0,3px);transform:translate(0,3px)}8%{-webkit-transform:translate(0,-3px);transform:translate(0,-3px)}12%{-webkit-transform:translate(0,3px);transform:translate(0,3px)}16%{-webkit-transform:translate(0,-3px);transform:translate(0,-3px)}20%{-webkit-transform:translate(0,3px);transform:translate(0,3px)}100%,22%{-webkit-transform:translate(0,0);transform:translate(0,0)}}@keyframes vertical{0%{-webkit-transform:translate(0,-3px);-ms-transform:translate(0,-3px);transform:translate(0,-3px)}4%{-webkit-transform:translate(0,3px);-ms-transform:translate(0,3px);transform:translate(0,3px)}8%{-webkit-transform:translate(0,-3px);-ms-transform:translate(0,-3px);transform:translate(0,-3px)}12%{-webkit-transform:translate(0,3px);-ms-transform:translate(0,3px);transform:translate(0,3px)}16%{-webkit-transform:translate(0,-3px);-ms-transform:translate(0,-3px);transform:translate(0,-3px)}20%{-webkit-transform:translate(0,3px);-ms-transform:translate(0,3px);transform:translate(0,3px)}100%,22%{-webkit-transform:translate(0,0);-ms-transform:translate(0,0);transform:translate(0,0)}}.faa-parent.animated-hover:hover>.faa-vertical,.faa-vertical.animated,.faa-vertical.animated-hover:hover{-webkit-animation:vertical 2s ease infinite;animation:vertical 2s ease 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horizontal{0%{-webkit-transform:translate(0,0);-ms-transform:translate(0,0);transform:translate(0,0)}6%{-webkit-transform:translate(5px,0);-ms-transform:translate(5px,0);transform:translate(5px,0)}12%{-webkit-transform:translate(0,0);-ms-transform:translate(0,0);transform:translate(0,0)}18%{-webkit-transform:translate(5px,0);-ms-transform:translate(5px,0);transform:translate(5px,0)}24%{-webkit-transform:translate(0,0);-ms-transform:translate(0,0);transform:translate(0,0)}30%{-webkit-transform:translate(5px,0);-ms-transform:translate(5px,0);transform:translate(5px,0)}100%,36%{-webkit-transform:translate(0,0);-ms-transform:translate(0,0);transform:translate(0,0)}}.faa-horizontal.animated,.faa-horizontal.animated-hover:hover,.faa-parent.animated-hover:hover>.faa-horizontal{-webkit-animation:horizontal 2s ease infinite;animation:horizontal 2s ease infinite}.faa-horizontal.animated-hover.faa-fast:hover,.faa-horizontal.animated.faa-fast,.faa-parent.animated-hover:hover>.faa-horizontal.faa-fast{-webkit-animation:horizontal 1s ease infinite;animation:horizontal 1s ease infinite}.faa-horizontal.animated-hover.faa-slow:hover,.faa-horizontal.animated.faa-slow,.faa-parent.animated-hover:hover>.faa-horizontal.faa-slow{-webkit-animation:horizontal 3s ease infinite;animation:horizontal 3s ease infinite}@-webkit-keyframes flash{0%,100%,50%{opacity:1}25%,75%{opacity:0}}@keyframes flash{0%,100%,50%{opacity:1}25%,75%{opacity:0}}.faa-flash.animated,.faa-flash.animated-hover:hover,.faa-parent.animated-hover:hover>.faa-flash{-webkit-animation:flash 2s ease infinite;animation:flash 2s ease infinite}.faa-flash.animated-hover.faa-fast:hover,.faa-flash.animated.faa-fast,.faa-parent.animated-hover:hover>.faa-flash.faa-fast{-webkit-animation:flash 1s ease infinite;animation:flash 1s ease infinite}.faa-flash.animated-hover.faa-slow:hover,.faa-flash.animated.faa-slow,.faa-parent.animated-hover:hover>.faa-flash.faa-slow{-webkit-animation:flash 3s ease infinite;animation:flash 3s ease infinite}@-webkit-keyframes bounce{0%,10%,100%,20%,50%,80%{-webkit-transform:translateY(0);transform:translateY(0)}40%,60%{-webkit-transform:translateY(-15px);transform:translateY(-15px)}}@keyframes bounce{0%,10%,100%,20%,50%,80%{-webkit-transform:translateY(0);-ms-transform:translateY(0);transform:translateY(0)}40%,60%{-webkit-transform:translateY(-15px);-ms-transform:translateY(-15px);transform:translateY(-15px)}}.faa-bounce.animated,.faa-bounce.animated-hover:hover,.faa-parent.animated-hover:hover>.faa-bounce{-webkit-animation:bounce 2s ease infinite;animation:bounce 2s ease infinite}.faa-bounce.animated-hover.faa-fast:hover,.faa-bounce.animated.faa-fast,.faa-parent.animated-hover:hover>.faa-bounce.faa-fast{-webkit-animation:bounce 1s ease infinite;animation:bounce 1s ease 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infinite}.faa-float.animated-hover.faa-fast:hover,.faa-float.animated.faa-fast,.faa-parent.animated-hover:hover>.faa-float.faa-fast{-webkit-animation:float 1s linear infinite;animation:float 1s linear infinite}.faa-float.animated-hover.faa-slow:hover,.faa-float.animated.faa-slow,.faa-parent.animated-hover:hover>.faa-float.faa-slow{-webkit-animation:float 3s linear infinite;animation:float 3s linear infinite}@-webkit-keyframes pulse{0%{-webkit-transform:scale(1.1);transform:scale(1.1)}50%{-webkit-transform:scale(0.8);transform:scale(0.8)}100%{-webkit-transform:scale(1.1);transform:scale(1.1)}}@keyframes pulse{0%{-webkit-transform:scale(1.1);-ms-transform:scale(1.1);transform:scale(1.1)}50%{-webkit-transform:scale(0.8);-ms-transform:scale(0.8);transform:scale(0.8)}100%{-webkit-transform:scale(1.1);-ms-transform:scale(1.1);transform:scale(1.1)}}.faa-parent.animated-hover:hover>.faa-pulse,.faa-pulse.animated,.faa-pulse.animated-hover:hover{-webkit-animation:pulse 2s linear infinite;animation:pulse 2s linear infinite}.faa-parent.animated-hover:hover>.faa-pulse.faa-fast,.faa-pulse.animated-hover.faa-fast:hover,.faa-pulse.animated.faa-fast{-webkit-animation:pulse 1s linear infinite;animation:pulse 1s linear infinite}.faa-parent.animated-hover:hover>.faa-pulse.faa-slow,.faa-pulse.animated-hover.faa-slow:hover,.faa-pulse.animated.faa-slow{-webkit-animation:pulse 3s linear infinite;animation:pulse 3s linear infinite}.faa-parent.animated-hover:hover>.faa-shake,.faa-shake.animated,.faa-shake.animated-hover:hover{-webkit-animation:wrench 2.5s ease infinite;animation:wrench 2.5s ease infinite}.faa-parent.animated-hover:hover>.faa-shake.faa-fast,.faa-shake.animated-hover.faa-fast:hover,.faa-shake.animated.faa-fast{-webkit-animation:wrench 1.2s ease infinite;animation:wrench 1.2s ease infinite}.faa-parent.animated-hover:hover>.faa-shake.faa-slow,.faa-shake.animated-hover.faa-slow:hover,.faa-shake.animated.faa-slow{-webkit-animation:wrench 3.7s ease infinite;animation:wrench 3.7s ease infinite}@-webkit-keyframes tada{0%{-webkit-transform:scale(1);transform:scale(1)}10%,20%{-webkit-transform:scale(.9) rotate(-8deg);transform:scale(.9) rotate(-8deg)}30%,50%,70%{-webkit-transform:scale(1.3) rotate(8deg);transform:scale(1.3) rotate(8deg)}40%,60%{-webkit-transform:scale(1.3) rotate(-8deg);transform:scale(1.3) rotate(-8deg)}100%,80%{-webkit-transform:scale(1) rotate(0);transform:scale(1) rotate(0)}}@keyframes tada{0%{-webkit-transform:scale(1);-ms-transform:scale(1);transform:scale(1)}10%,20%{-webkit-transform:scale(.9) rotate(-8deg);-ms-transform:scale(.9) rotate(-8deg);transform:scale(.9) rotate(-8deg)}30%,50%,70%{-webkit-transform:scale(1.3) rotate(8deg);-ms-transform:scale(1.3) rotate(8deg);transform:scale(1.3) rotate(8deg)}40%,60%{-webkit-transform:scale(1.3) rotate(-8deg);-ms-transform:scale(1.3) rotate(-8deg);transform:scale(1.3) rotate(-8deg)}100%,80%{-webkit-transform:scale(1) rotate(0);-ms-transform:scale(1) rotate(0);transform:scale(1) rotate(0)}}.faa-parent.animated-hover:hover>.faa-tada,.faa-tada.animated,.faa-tada.animated-hover:hover{-webkit-animation:tada 2s linear infinite;animation:tada 2s linear infinite}.faa-parent.animated-hover:hover>.faa-tada.faa-fast,.faa-tada.animated-hover.faa-fast:hover,.faa-tada.animated.faa-fast{-webkit-animation:tada 1s linear infinite;animation:tada 1s linear infinite}.faa-parent.animated-hover:hover>.faa-tada.faa-slow,.faa-tada.animated-hover.faa-slow:hover,.faa-tada.animated.faa-slow{-webkit-animation:tada 3s linear infinite;animation:tada 3s linear infinite}@-webkit-keyframes passing{0%{-webkit-transform:translateX(-50%);transform:translateX(-50%);opacity:0}50%{-webkit-transform:translateX(0%);transform:translateX(0%);opacity:1}100%{-webkit-transform:translateX(50%);transform:translateX(50%);opacity:0}}@keyframes passing{0%{-webkit-transform:translateX(-50%);-ms-transform:translateX(-50%);transform:translateX(-50%);opacity:0}50%{-webkit-transform:translateX(0%);-ms-transform:translateX(0%);transform:translateX(0%);opacity:1}100%{-webkit-transform:translateX(50%);-ms-transform:translateX(50%);transform:translateX(50%);opacity:0}}.faa-parent.animated-hover:hover>.faa-passing,.faa-passing.animated,.faa-passing.animated-hover:hover{-webkit-animation:passing 2s linear infinite;animation:passing 2s linear infinite}.faa-parent.animated-hover:hover>.faa-passing.faa-fast,.faa-passing.animated-hover.faa-fast:hover,.faa-passing.animated.faa-fast{-webkit-animation:passing 1s linear infinite;animation:passing 1s linear infinite}.faa-parent.animated-hover:hover>.faa-passing.faa-slow,.faa-passing.animated-hover.faa-slow:hover,.faa-passing.animated.faa-slow{-webkit-animation:passing 3s linear infinite;animation:passing 3s linear infinite}@-webkit-keyframes 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linear}.faa-burst.animated-hover.faa-slow:hover,.faa-burst.animated.faa-slow,.faa-parent.animated-hover:hover>.faa-burst.faa-slow{-webkit-animation:burst 3s infinite linear;animation:burst 3s infinite linear}@-webkit-keyframes falling{0%{-webkit-transform:translateY(-50%);transform:translateY(-50%);opacity:0}50%{-webkit-transform:translateY(0%);transform:translateY(0%);opacity:1}100%{-webkit-transform:translateY(50%);transform:translateY(50%);opacity:0}}@keyframes falling{0%{-webkit-transform:translateY(-50%);-ms-transform:translateY(-50%);transform:translateY(-50%);opacity:0}50%{-webkit-transform:translateY(0%);-ms-transform:translateY(0%);transform:translateY(0%);opacity:1}100%{-webkit-transform:translateY(50%);-ms-transform:translateY(50%);transform:translateY(50%);opacity:0}}.faa-falling.animated,.faa-falling.animated-hover:hover,.faa-parent.animated-hover:hover>.faa-falling{-webkit-animation:falling 2s linear infinite;animation:falling 2s linear infinite}.faa-falling.animated-hover.faa-fast:hover,.faa-falling.animated.faa-fast,.faa-parent.animated-hover:hover>.faa-falling.faa-fast{-webkit-animation:falling 1s linear infinite;animation:falling 1s linear infinite}.faa-falling.animated-hover.faa-slow:hover,.faa-falling.animated.faa-slow,.faa-parent.animated-hover:hover>.faa-falling.faa-slow{-webkit-animation:falling 3s linear infinite;animation:falling 3s linear infinite}
@media (min-width: 1024px){.topButton{display: none;!important}#goToTop{display: none;!important}}
.back-to-top{
cursor: pointer;
position: fixed;
right: 80px;
top: -900px;
z-index: 2;
width: 70px;
height: 900px;
background: url(https://pic1.imgdb.cn/item/63501de216f2c2beb1048790.png);
transition: all .5s ease-in-out;
opacity: 1;
}最后是控制滑动返回的效果特效的js文件。
- js文件：
$(function() {
//scroll 事件适用于所有可滚动的元素和 window 对象（浏览器窗口）。
$(window).scroll(function() {
var scroHei = $(window).scrollTop();//滚动的高度
if (scroHei > 500) {
$('.back-to-top').css('top','-200px');
// $('.back-to-top').fadeIn();
} else {
$('.back-to-top').css('top','-999px');
// $('.back-to-top').fadeOut();
}
})
/*点击返回顶部*/
$('.back-to-top').click(function() {
$('body,html').animate({
scrollTop: 0
}, 600);
})
})具体就完事了，还有什么不懂直接联系我就行！
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