.footer-onda{position:relative;margin-top:70px}.footer-onda::before{content:"";position:absolute;left:0;top:-70px;width:100%;height:90px;background:#394b3d;clip-path:polygon(0% 75%,8% 68%,16% 73%,25% 64%,35% 70%,45% 60%,55% 68%,65% 58%,75% 65%,85% 55%,93% 62%,100% 52%,100% 100%,0% 100%)}