.header-stripe{clip-path:polygon(0 0,0 100%,100% 0);left:0;opacity:0;position:absolute;top:0;transform:translate3d(-20px,-20px,0) scale(.9);transition:opacity .4s ease,transform .4s ease;z-index:1}.header-stripe--visible{opacity:1;transform:translateZ(0) scale(1)}.stripe-tip{bottom:0;clip-path:polygon(100% 0,0 100%,100% 100%);opacity:0;position:absolute;right:0;transform:translate3d(20px,20px,0) scale(.9);transition:opacity .4s ease,transform .4s ease;z-index:1}.stripe-tip--visible{opacity:1;transform:translateZ(0) scale(1)}