@charaset utf-8{}.traiangle{width:0;height:0;border-left:50vw solid transparent;border-right:50vw solid transparent;border-top:100px solid #C6C6C6;position:absolute;top:0;z-index:1}@media (max-width: 540px){.traiangle{border-top:50px solid #C6C6C6}}