.vorhangl {position:fixed;z-index:99;top:0px;left:0%;width:51%;height:100%;background:repeating-linear-gradient(90deg,maroon,maroon 30px,darkred 30px,darkred 70px);transform:skewX(0deg);transition: all 5s ease-in;}
.vorhangr {position:fixed;z-index:99;top:0px;left:49%;width:51%;height:100%;background:repeating-linear-gradient(90deg,maroon,maroon 30px,darkred 30px,darkred 70px);transform:skewX(0deg);transition: all 5s ease-in;}
body:hover .vorhangl {width:0%;left:-10%;transform:skewX(-10deg);}
body:hover .vorhangr {width:0%;left:110%;transform:skewX(10deg);}