.polygon{clip-path:polygon(12% 0,88% 0,100% 100%,0 100%);height:90px;width:100%}.polygon-slider-top{margin-top:-90px;position:relative;top:10px;z-index:100}section.polygon.polygon-slider-bottom{bottom:10px;clip-path:polygon(100% 0,88% 100%,12% 100%,0 0);margin-bottom:-90px;position:relative;z-index:100}