.nx-shape{
    width:100%;
    height:80px;

    background:#fff;

    clip-path:polygon(0 0,100% 0,96% 100%,0 100%);
}

.nx-shape-bottom{
    clip-path: polygon(
        0 0,
        100% 0,
        100% 100%,
        96% 100%,
        94% 0,
        0 0
    );
}