纯CSS实现动态圆圈⼤⼩弹性变化特效动画纯CSS实现动态圆圈⼤⼩弹性渐变特效动画
<!DOCTYPE HTML>
<html>
<head>
<title>纯CSS3实现圆圈动态发光特效动画</title>
<style>
css特效文字
body {
background-color: #000000;
}
@keyframes twinkling {
0% {
opacity: 0.2;
transform: scale(1);
}
50% {
opacity: 0.5;
transform: scale(1.12);
}
100% {
opacity: 0.2;
transform: scale(1);
}
}
.circle-wrap {
position: absolute;
left: 100px;
top: 100px;
}
.circle {
position: relative;
width: 24px;
height: 24px;
}
.
small-circle {
border-radius: 50%;
width: 12px;
height: 12px;
background: #FF0033;
position: absolute;
}
.big-circle {
position: absolute;
top: -6px;
left: -6px;
width: 100%;
height: 100%;
border-radius: 50%;
background: #FF0033;
animation: twinkling 1s infinite ease-in-out;
animation-fill-mode: both;
}
@keyframes scale {
0% {
75% {
transform: scale(3)
}
78%,
100% {
opacity: 0
}
}
@keyframes scales {
0% {
transform: scale(1)
}
50%,
75% {
transform: scale(2)
}
78%,
100% {
opacity: 0
}
}
.smallcircle2 {
position: absolute;
width: 12px;
height: 12px;
background-color: #ffffff;
border-radius: 50%;
top: 100px;
left: 200px;
}
.smallcircle2:before {
content: '';
display: block;
width: 12px;
height: 12px;
border-radius: 50%;
opacity: .4;
background-color: #ffffff;
animation: scale 1s infinite cubic-bezier(0, 0, .49, 1.02);        }
.bigcircle2 {
position: absolute;
width: 12px;
height: 12px;
border-radius: 50%;
opacity: .4;
background-color: #ffffff;
top: 100px;
left: 200px;
animation: scales 1s infinite cubic-bezier(0, 0, .49, 1.02);        }
@keyframes scaless {
0% {
transform: scale(1)
75% {
transform: scale(3)
}
78%,
100% {
opacity: 0
}
}
.item {
position: absolute;
width: 14px;
height: 14px;
background-color: #FFFF00;
border-radius: 50%;
top: 150px;
left: 100px;
}
.item:before {
content: '';
display: block;
width: 14px;
height: 14px;
border-radius: 50%;
opacity: .7;
background-color: #FFFF00;
animation: scaless 1s infinite cubic-bezier(0, 0, .49, 1.02);        }
</style>
</head>
<body>
<div class="circle-wrap">
<div class="circle">
<div class="big-circle"></div>
<div class="small-circle"></div>
</div>
</div>
<div class="smallcircle2"></div>
<div class="bigcircle2"></div>
<div class="item"></div>
</body>
</html>

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