css剪裁GIF背景图片动画特效

.wrapper{

background: #252854;
width: 100%;
height:500px;
border-radius: 5px;
position: relative; 
}
.text{
flex: 0 0 100%;
font-size: 14rem;
font-weight: 900;
color: #00000000;
text-align: center;
font-family: 'Lato', sans-serif;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border-bottom: 1px solid #d4d7ff;
border-top: 1px solid #d4d7ff;
background: url(./img/source.gif);
background-clip: text;
-webkit-background-clip: text;
}

.text:after{
content: attr(data-text);
-webkit-text-stroke: 1.5px #d4d7ff;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -49%);
background: url(./img/source.gif);
background-clip: text;
-webkit-background-clip: text;
background-size: 43%;
}

<div class= "wrapper">
　　<div class= "text" data-text= "2020">2020</div>
<div>