标签:scrollto func one click OLE htm title dcl position
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <style> .div1{ width: 100%; height: 800px; background-color: #0066CC; } .div2{ width: 100%; height: 800px; background-color:red; } .returnTop{ height: 50px; width: 90px; background-color: ghostwhite; bottom:10px; position: fixed; right: 20px; text-align: center; line-height: 40px; } .hide{ display: none; } </style> <body> <div class="div1"></div> <div class="div2"> <div class="returnTop hide" onclick="returnTop();">返回顶部</div> </div> <script src="jquery-3.4.1.js"></script> <script> window.onscroll=function(){ console.log($(window).scrollTop()); if ($(window).scrollTop() >100) { $(".returnTop").removeClass("hide")} else { $(".returnTop").addClass("hide") } } function returnTop() { $(window).scrollTop(0) } </script> </body> </html>
中间用了Jqurey模块及一些JS的操作。
标签:scrollto func one click OLE htm title dcl position
原文地址:https://www.cnblogs.com/sucanji/p/10911248.html