效果图：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS Zoom in and out Animation</title>
<style>
@-webkit-keyframes zoomIn {
from {
opacity: 0;
-webkit-transform: scale3d(0.3, 0.3, 0.3);
transform: scale3d(0.3, 0.3, 0.3);
}
to {
opacity: 1;
}
}
@keyframes zoomIn {
from {
opacity: 0;
-webkit-transform: scale3d(0.3, 0.3, 0.3);
transform: scale3d(0.3, 0.3, 0.3);
}
to {
opacity: 1;
}
}
.zoomIn {
-webkit-animation-name: zoomIn;
animation-name: zoomIn;
}
#box {
height:400px;
width:400px;
background: red;
-webkit-animation: zoomIn 2s ease .5s forwards;
opacity:0;
}
</style>
<style>
@keyframes zoom-in-zoom-out {
0% {
transform: scale(1, 1);
}
50% {
transform: scale(1.5, 1.5);
}
100% {
transform: scale(1, 1);
}
}
.zoom-in-out-box {
margin: 24px;
width: 50px;
height: 50px;
background: #f50057;
animation: zoom-in-zoom-out 1s ease infinite;
}
</style>
</head>
<body>
<div id="box"></div>
<div class="zoom-in-out-box"></div>
</body>
</html>
转载请注明，
原文出处：https://www.cnblogs.com/eddyz/p/17769960.html