.z-index-1{z-index:1!important}
.z-index-2{z-index:2!important}
.z-index-3{z-index:3!important}
.z-index-4{z-index:4!important}
.z-index-5{z-index:5!important}
.z-index-8{z-index:8!important}
.z-index-10{z-index:10!important}
.z-index-15{z-index:15!important}
.z-index-16{z-index:16!important}
.course-right-side-section__mask{pointer-events:none!important}