.board-container{border:1px solid #000}.board{position:relative}.board-item{border:1px solid #fff;position:absolute;top:0;left:0;width:100%;height:100%}.board-item:first-child{clip-path:polygon(0 0,20% 0,0 30%);background-color:#fff;z-index:10}.board-item:first-child:hover{background-color:red}.board-item:nth-child(2){clip-path:polygon(25% 0,0 35%,0 40%,35% 0);background-color:#fff;z-index:10}.board-item:nth-child(2):hover{background-color:blue}