.header{background-image:url(../images/background-main.jpeg);background-image: image-set(
        "../images/background-main.webp" type("image/webp"),
        "../images/background-main.avif" type("image/avif"), 
        "../images/background-main.jpeg"
    )}.header-all .header-bottom{background-image:url(../images/background-all.jpeg);background-image: image-set(
        "../images/background-all.webp" type("image/webp"),
        "../images/background-all.avif" type("image/avif"), 
        "../images/background-all.jpeg"
    )}.question{background-image:url(../images/question-background.jpeg);background-image: image-set(
        "../images/question-background.webp" type("image/webp"),
        "../images/question-background.avif" type("image/avif"), 
        "../images/question-background.jpeg"
    );background-repeat:no-repeat;background-size:cover;background-position:center;padding-top:50px;margin-right:auto;margin-left:auto;width:100%;padding-bottom:100px}.product-description__button-active.product-description__button-build{background-image:url(../images/product-build-backgraound.jpeg);background-image: image-set(
        "../images/product-build-backgraound.webp" type("image/webp"),
        "../images/product-build-backgraound.avif" type("image/avif"), 
        "../images/product-build-backgraound.jpeg"
    )}.product-description__button-active.product-description__button-service{background-image:url(../images/product-service-backgraound.jpeg);background-image: image-set(
        "../images/product-service-backgraound.webp" type("image/webp"),
        "../images/product-service-backgraound.avif" type("image/avif"), 
        "../images/product-service-backgraound.jpeg"
    )}.product-description__button-active.product-description__button-beton{background-image:url(../images/product-beton-backgraound.jpeg);background-image: image-set(
        "../images/product-beton-backgraound.webp" type("image/webp"),
        "../images/product-beton-backgraound.avif" type("image/avif"), 
        "../images/product-beton-backgraound.jpeg"
    )}.why__item-1{background-image:url(../images/why-background-1.jpeg);background-image: image-set(
        "../images/why-background-1.webp" type("image/webp"),
        "../images/why-background-1.avif" type("image/avif"), 
        "../images/why-background-1.jpeg"
    );background-size:cover;background-repeat:no-repeat}.why__item-2{background-image:url(../images/why-background-2.jpeg);background-image: image-set(
        "../images/why-background-2.webp" type("image/webp"),
        "../images/why-background-2.avif" type("image/avif"), 
        "../images/why-background-2.jpeg"
    );background-size:cover;background-repeat:no-repeat}.why__item-3{background-image:url(../images/why-background-3.jpeg);background-image: image-set(
        "../images/why-background-3.webp" type("image/webp"),
        "../images/why-background-3.avif" type("image/avif"), 
        "../images/why-background-3.jpeg"
    );background-size:cover;background-repeat:no-repeat}