背景图滚动translateY代替background-position更优
作者：互联网
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>doc</title>
<style>
*,
*:before,
*:after {
box-sizing: border-box;
}
.pen {
background-color: blue;
position: absolute;
top: 0px;
left: 0px;
height: 100%;
width: 100%;
}
.panel {
padding: 3rem;
height: 50%;
}
.top {
background-color: #3e69c3;
background-image: url(http://scarbroughstudios.com/img/codepen.svg);
background-position: center center;
background-size: 500px;
animation: scrollBad 5s linear infinite;
}
.bottom {
background-color: #31cc70;
overflow: hidden;
position: relative;
}
.bottom .scroll {
background-image: url(http://scarbroughstudios.com/img/codepen.svg);
background-position: center center;
background-size: 500px;
position: absolute;
top: 0px;
left: 0px;
height: 400%;
width: 100%;
z-index: 1;
animation: scrollGood 5s linear infinite;
}
h1 {
color: white;
font-weight: 400;
font-family: sans-serif;
margin: 0;
position: relative;
z-index: 2;
}
@keyframes scrollBad {
0% {
background-position: 0 0;
}
100% {
background-position: 0 -320px;
}
}
@keyframes scrollGood {
0% {
transform: translateY(0);
}
100% {
transform: translateY(-320px);
}
}
</style>
</head>
<body>
<h1>test</h1>
<section class="pen">
<div class="panel top">
<h1>Animate: background-position</h1>
</div>
<div class="panel bottom">
<h1>Animate: translateY</h1>
<div class="scroll"></div>
</div>
</section>
</body>
</html>
出处: https://wow.techbrood.com/fiddle/9614
标签：translateY,color,100%,background,position,0px 来源： https://www.cnblogs.com/mengff/p/14943192.html