console 命令行工具 X clear

console

<div class="circle"></div>

.circle {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    background: lightcoral;
    animation: scale 2s linear infinite;
}

@keyframes scale{
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}