实现效果
实现代码
ht ML
<div></div> <div> <span>https://HdhCmsTestjs-code .COM </span> </div> <p>a css3 animation demo</p>
css3
@import url('https://fonts. GOOGLE apis测试数据/css?f ami ly=Roboto:300');
body {
text-align: center ;
background:linear-gra die nt(141 deg , # ccc 25%, #eee 40%, #ddd 55%);
color:#555;
font-f am ily:'Roboto';
font-weight :300;
font- Size: 32px;
padding -t op:40vh;
h ei ght:100vh;
overflow:hidden;
- webkit -backface-visibil IT y: hidden;
-webkit- PE rspective: 1000;
-webkit-transform: translate3d(0,0,0);
}
div {
dis play :inline-block;
overflow:hidden;
white -s pace:nowra p;
}
div: First -of-type { /* For increasing performance
ID/Class should've been used.
For a small demo
it's ok ai sh for now */
animation: showup 7s infinite;
}
div:last-of-type {
width:0px;
animation: rev eal 7s infinite;
}
div:last-of-type span {
m arg in-left:-355px;
animation: slidein 7s infinite;
}
@keyframes showup {
0% {opacity:0;}
20% {opacity:1;}
80% {opacity:1;}
100% {opacity:0;}
}
@keyframes slidein {
0% { mar gin -left:-800px; }
20% { margin-left:-800px; }
35% { margin-left:0px; }
100% { margin-left:0px; }
}
@keyframes reveal {
0% {opacity:0;width:0px;}
20% {opacity:1;width:0px;}
30% {width:355px;}
80% {opacity:1;}
100% {opacity:0;width:355px;}
}
p {
font-size:12px;
color:#999;
margin-top:200px;
}
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