SOURCE

<div>
    图形
</div>

div {
    /* height: 100px; */
    margin: 100px 0 0 100px;
    width: 100px;
    background-color: #fff;
    border-radius: 50%;
    border: solid 1px #f2f2f2;
    text-align: center;
    line-height: 100px;
    animation: trans 2s ease-out infinite;
}

div:hover {
    
}

@keyframes trans {
    0% {

    }
    100% {
        /* transform: scale(2.5); */
    }
}