.sign-login-bg{position:relative;overflow:hidden}.sign-login-bg:before{content:"";pointer-events:none;z-index:1;background-image:linear-gradient(#ffffff12 1px,#0000 1px),linear-gradient(90deg,#ffffff12 1px,#0000 1px);background-size:50px 50px;position:absolute;inset:0;transform:perspective(1000px)rotateX(60deg)rotate(-45deg)scale(2)}