小星星制作css3

```

原理：一个正方形 两个圆 定位 旋转 圆角边属性 

body部分

    
    

    


css部分

.heart-body{
    width: 200px;
    height: 200px;
    left: 50%;
    top: 50%;
    margin: 10px auto;
    background: red;
    position: absolute;
    transform: rotate(45deg);
    animation: love 1s ease infinite;
}
.heart-shape{
    width: 200px;
    height: 200px;
    background: indianred;
    box-shadow: 0 0 50px rgb(255,0,0);
}
.heart-body:before{
    content:'';
    width: 200px;
    height: 200px;
    background: indianred;
    border-radius: 50%;
    box-shadow: 0 0 50px rgb(255,0,0);
    position: absolute;
    top: 0;
    left: -100px;
}
.heart-body:after{
    content:'';
    width: 200px;
    height: 200px;
    background: indianred;
    border-radius: 50%;
    box-shadow: 0 0 50px rgb(255,0,0);
    position: absolute;
    top: -100px;
    left: 0px;
}
@keyframes love {
    0%,100%{transform: scale(0.9,0.9)rotate(45deg)}
    50%{transform: scale(1.2,1.2)rotate(45deg)}
}

```