JS自定義滾動條效果
阿新 • • 發佈:2020-03-16
本文例項為大家分享了JS自定義滾動條的具體程式碼,供大家參考,具體內容如下
<head> <meta charset="UTF-8"> <title></title> <style type="text/css"> #all{ width: 500px; height: 50px; background-color: sandybrown; border-radius: 25px; margin: 0 auto; position: relative; } #div1{ width: 50px; height: 50px; border-radius: 50%; background-color: rosybrown; position: absolute; } #box{ background-color: yellow; position: absolute; top: 200px; left: 200px; } </style> </head> <body> <div id="all"> <div id="div1"></div> </div> <div id="box"></div> <script type="text/javascript"> var oAll = document.getElementById("all"); var oDiv1 = document.getElementById("div1"); var oBox = document.getElementById("box"); var maxL = oAll.clientWidth - oDiv1.offsetWidth; oDiv1.onmousedown = function(){ var ev = ev || window.event; var lessX = ev.clientX - oDiv1.offsetLeft; document.onmousemove = function(){ var ev = ev || window.event; var posL = ev.clientX - lessX; if(posL<0){ posL = 0; } if(posL>maxL){ posL = maxL; } oDiv1.style.left = posL + "px"; //滾動條移動的百分比 //oDiv1.offsetLeft/maxL var per = posL/maxL; //定義寬0~300 oBox.style.width = 300*per+"px"; oBox.style.height = 300*per+"px"; oBox.style.marginTop = -oBox.offsetHeight/2+"px"; oBox.style.marginLeft = -oBox.offsetWidth/2+"px"; } } document.onmouseup =function(){ document.onmousemove = null; } </script> </body>
更多關於滾動效果的精彩文章點選下方專題:
javascript滾動效果彙總
jquery滾動效果彙總
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。