wordpress返回顶部的功能代码

发布时间：2025-01-16 以下文章来源于网友投稿，内容仅供参考！

几乎所有的网站都有这个返回顶部的功能，快速返回的功能对于体验来说是非常基础的。下面给大家介绍一段非常简洁的wordpress回到顶部代码，用js来实现返回顶部功能，并且有css样式支持。

area data-settings="dblclick" readonly ><div id="gotop"></div><script type='text/javascript'> backTop=function (btnId){ var btn=document.getElementById(btnId); var d=document.documentElement; var b=document.body; window.onscroll=set; btn.onclick=function (){ btn.style.display="none"; window.onscroll=null; this.timer=setInterval(function(){ d.scrollTop-=Math.ceil((d.scrollTop+b.scrollTop)*0.1); b.scrollTop-=Math.ceil((d.scrollTop+b.scrollTop)*0.1); if((d.scrollTop+b.scrollTop)==0) clearInterval(btn.timer,window.onscroll=set); },10); }; function set(){btn.style.display=(d.scrollTop+b.scrollTop>100)?'block':"none"} }; backTop('gotop');</script>area>1<div id="gotop"></div><script type='text/javascript'> backTop=function (btnId){ var btn=document.getElementById(btnId); var d=document.documentElement; var b=document.body; window.onscroll=set; btn.onclick=function (){ btn.style.display="none"; window.onscroll=null; this.timer=setInterval(function(){ d.scrollTop-=Math.ceil((d.scrollTop+b.scrollTop)*0.1); b.scrollTop-=Math.ceil((d.scrollTop+b.scrollTop)*0.1); if((d.scrollTop+b.scrollTop)==0) clearInterval(btn.timer,window.onscroll=set); },10); }; function set(){btn.style.display=(d.scrollTop+b.scrollTop>100)?'block':"none"} }; backTop('gotop');</script>

area data-settings="dblclick" readonly >#gotop{ width:38px; height:36px; position:fixed; bottom:25px; right:10px; top:auto; display:block; cursor:pointer; background: url(images/gotop.gif) no-repeat}*html #gotop{ position:absolute; bottom:auto; top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));}area>1#gotop{ width:38px; height:36px; position:fixed; bottom:25px; right:10px; top:auto; display:block; cursor:pointer; background: url(images/gotop.gif) no-repeat}*html #gotop{ position:absolute; bottom:auto; top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));}