<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>遮罩层禁止底层滚动条滚动</title>
<style>
*{
margin: 0;
padding: 0;
}
ul,li{
list-style:none;
}
li{
width: 800px;
height: 500px;
background:red;
margin-top:10px;
}
#btn{
position: fixed;
top:500px;
right:200px;
}
#shade{
position: fixed;
top:0;
bottom:0;
left:0;
right:0;
background:rgba(0, 0, 0, .5);
display: none;
}
</style>
</head>
<body>
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<button id="btn">遮罩层</button>
<div id="shade"></div>
<script>
var btn=document.getElementById("btn");
var shade=document.getElementById("shade");
btn.onclick = function(){
shade.style.display = "block";
// window.onmousewheel=function(){return false};
function disabledMouseWheel() {
if (document.addEventListener) {
document.addEventListener('DOMMouseScroll', scrollFunc, false);
}
window.onmousewheel = document.onmousewheel = scrollFunc;
}
function scrollFunc(e) {
e = e || window.event;
if(e.preventDefault) {
e.preventDefault();
e.stopPropagation();
} else {
e.cancelBubble=true;
e.returnValue = false;
}
return false;
}
disabledMouseWheel();
}
</script>
</body>
</html>
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