.firmodule{position:relative;z-index:0}
.firmodule:before{content:'';width:100vw;height:100%;position:absolute;top:0;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#B9B9B7 0%,#fff 75%);z-index:-1}
.secmodule{position:relative;z-index:0}
.secmodule:before{content:'';width:100vw;height:100%;position:absolute;top:0;left:50%;transform:translateX(-50%);background:#f4f5f6;z-index:-1}