biv画加载

        div {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: 3px solid rgb(241, 240, 240);
            animation: load 3s linear infinite;
            border-bottom: 3px dashed rgb(11, 232, 244);
            margin: 0 auto;
        }

        @keyframes load {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }