.shape-up {
    height: 200px; 
    clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}

.shape-down { 
    height: 250px;
    clip-path: polygon(0 10%, 100% 0, 100% 100%, 0 100%);
}

@media (max-width: 768px) {
    .shape-up {
        clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
    }

    .shape-down { 
        clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 100%);
    }
}