.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;
}