JS自定义滚动条效果

本文实例为大家分享了JS自定义滚动条的具体代码,供大家参考,具体内容如下

<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";

//滚动条移动的百分比

//oDiv1.offsetLeft/maxL

var per = posL/maxL;

//定义宽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>

更多关于滚动效果的精彩文章点击下方专题:

javascript滚动效果汇总

jquery滚动效果汇总

以上是 JS自定义滚动条效果 的全部内容, 来源链接: utcz.com/z/312080.html

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