front-AT/app/Components/Footer/Footer.module.css

.yellowPart {
    position: absolute;
    content: "";
    top: 0;
    left: -50px;
    width: 20%;
    height: 100%;
    min-width: 300px;
    background: linear-gradient(to left, #003d79, #d59f0f);
    transform: skew(45deg);
    z-index: 1;
}

.yellowPartOpuest {
    position: absolute;
    content: "";
    top: 0;
    right: -50px;
    width: 20%;
    height: 100%;
    min-width: 300px;
    background: linear-gradient(to right, #003d79, #d59f0f);
    transform: skew(-45deg);
    z-index: 1;
}

@media(max-width:800px) {
    .yellowPart {
        width: 5%;
        left: -150px;
    }

    .yellowPartOpuest {
        width: 5%;
        right: -150px;
    }
}