body::before{content:"";display:block;background:-webkit-gradient(linear, left top, left bottom, from(rgba(32, 32, 32, 0.4)), to(rgba(32, 32, 32, 0.4))),url("../image/bg1.jpg") no-repeat center/cover;background:linear-gradient(rgba(32, 32, 32, 0.4), rgba(32, 32, 32, 0.4)),url("../image/bg1.jpg") no-repeat center/cover;width:100vw;height:100vh;position:fixed;top:0;left:0;z-index:-1}h2{border-bottom:3px #cb060d solid}