.webp #mainHeader {
    background: linear-gradient(180deg, rgba(33, 71, 84, .9), rgba(33, 71, 84, .9)), url(images/official_tab.0dab10ad.webp) 50%
}

.no-webp #mainHeader {
    background: linear-gradient(180deg, rgba(33, 71, 84, .9), rgba(33, 71, 84, .9)), url(https://www.keyliance.fr/build/images/official_tab.bbcaffa9.jpg) 50%
}

#typesOfProjectContainer .textThreeColumns {
    margin-top: 0
}

@media(min-width:1000px) {
    .webp #mainHeader {
        background: linear-gradient(180deg, rgba(33, 71, 84, .9), rgba(33, 71, 84, .9)), url(https://www.keyliance.fr/build/images/official_desktop.abf2910f.webp) 50%
    }

    .no-webp #mainHeader {
        background: linear-gradient(180deg, rgba(33, 71, 84, .9), rgba(33, 71, 84, .9)), url(https://www.keyliance.fr/build/images/official_desktop.575bc299.jpg) 50%
    }

    .twoColumns h2 {
        width: 700px
    }

    #typesOfProjectContainer .textThreeColumns {
        margin-top: 20px
    }
}

@media(min-width:1200px) {
    .textThreeColumns {
        margin: 60px 0 45px
    }

    #typesOfProjectContainer .textThreeColumns {
        margin-top: 42px
    }
}