.curve-mask{position:relative;overflow:hidden}.curve-up{top:0;left:0;right:0;height:150px;clip-path:ellipse(55% 50% at 50% 0)}.curve-down,.curve-up{position:absolute;background-color:#fff;z-index:10}.curve-down{clip-path:ellipse(55% 50% at 50% 100%)}