<style>

.logo {

    position: relative;

    font-size:1em;

    font-weight:200;

    line-height:19px;

    overflow:hidden;

    margin:0;

}

.logo::before{

    content:"";

    position: absolute;

    width: 100px;

    height: 20px;

    background-color: rgba(255,255,255,.5);

    -webkit-transform: rotate(-45deg);

    transform: rotate(-45deg);

    -webkit-animation: searchLights 1s ease-in 1s infinite;

    animation: searchLights 1s ease-in 1s infinite;

}

@-webkit-keyframes searchLights {

    0% { left: -90px; top: 0; }

    to { left: 90px; top: 0; }

}

</style>

复制以上css放到页面上，或者css文件里面，css类要根据你的具体名称更换下，即可达到和本站logo一样的扫光效果