@media screen and (max-width: 450px){

    #contact-buttons{
        position: fixed;
        bottom: 10px;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-left: 20px;
        padding-right: 20px;
        z-index: 100;
    }
    #fixed-img-container{
        height: 100vh;
        background-image: url('../images/bolts3.jpg');
        background-size: cover;
        
    }
    #fixed-img{
        display: none;
    }
    #header-big{
        height: 15vh;
        width: 100vw;
        align-items: stretch;
    }
    #header-logo-container{
        margin-left: 10px;
        margin-bottom: 25px;
        margin-top: 25px;
        align-items: center;
        width: 20%;
    }
    #header-logo{
        max-width: 100%;
    }
    #we-here{
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        color: #fff;
        font-family: 'OpenSans';
        margin-right: 10px;
        width: 25%;
    }
    
    #header-logo-container-text{
        display: none;
    }
    #header-logo-container-h{
        display: none;
    }
    #header-logo-container-name{
        display: none;
    }
    #header-phone-icon-container{
        display: none;
    }
    #header-phone-text{
        display: none;
    }

    #main-image-container{
        height: 85vh;
        background-size: 240%;
        background-position-y: 0%;
        background-position-x: 0%;
    }
    #main-image-text{
        font-size: 2.6em;
    }
    #main-image-slogan-inner{
        display: none;
    }
    #about-us-container{
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        align-items: center;
        height: 230vh;
        padding-top: 80px;
        padding-bottom: 200px;
    }
    #about-us-img-container{
        min-height: 30%;
        display: flex;
        justify-content: center;
        align-items: center;
        width: 80%;
        position: relative;
        background-image: url('../images/about-us.avif');
        background-size: cover;
    }
    #about-us-info{
        max-width: 80%;
    }
    #about-us-header-mini{
        max-width: 90%;
        color: #fff;
        font-family: 'RussoOne';
        font-size: 1.7em;
        display: flex;
        text-align: center;
        margin-bottom: 30px;
    }
    
    #about-us-header{
        display: none;
    }
    #about-us-text{
        text-align: center;
        font-size: 1em;
        margin-top: 30px;
    }
    #about-us-offer{
        margin-top: 60px;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
        min-height: 40%;
    }
    #about-us-offer-assorti{
        align-items: center;
    }
    #about-us-offer-assorti-header,
    #about-us-offer-prices-header,
    #about-us-offer-prices-text,
    #about-us-offer-prices{
        text-align: center;
    }
    #about-us-offer-assorti-header{
        font-size: 1.2em;
    }
    #about-us-offer-assorti-text{
        text-align: center;
        font-size: 0.9em;
        margin-bottom: 33px;
    }
    #about-us-offer-prices-header{
        font-size: 1.2em;
    }
    #about-us-offer-prices{
        align-items: center;
    }
    #about-us-offer-prices-text{
        font-size: 0.9em;
    }
    #about-us-offer-assorti-text{
        text-align: center;
    }

    #offer-container-header{
        width: 100%;
        font-size: 1.7em;
        padding: 0;
        justify-content: center;
    }
    #offer-container-sub-header{
        width: 100%;
        font-size: 1.2em;
        text-align: center;
        padding: 0;
        justify-content: center;
        padding-bottom: 60px;
    }
    #offer-container-content{
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
    }
    .guarantee-container{
        font-size: 0.7em;
    }
    .offer-container-item{
        width: 70%;
        height: 50vh;
    }
    .offer-container-item-header{
        font-size: 1.2em;
    }
    .offer-container-item-desc{
        font-size: 0.8em;
        margin-left: 5px;
        margin-right: 5px;
    }
    #ocii2,
    #ocii5,
    #ocii7,
    #ocii8,
    #ocii9,
    #ocii11{
        background-size: cover;
    }
    #ocii7{
        background-size: cover;
        background-position-y: 60%;
        background-position-x: 60%;
    }
    #ocii9{
        background-size: cover;
        background-position-y: 0%;
        background-position-x: 50%;
    }
    #ocii10{
        background-size: cover;
        background-position-y: 0%;
        background-position-x: 0%;
    }
    #ocii11{
        background-size: cover;
        background-position-y: 0%;
        background-position-x: 50%;
    }
    #why-us{
        width: 100%;
        height: 190vh;
        background-color: rgba(0,0,0, .3);
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
    }
    #why-us-header{
        width: 80%;
        font-size: 1.7em;
        text-align: center;
    }
    #why-us-subheader{
        font-size: 1.3em;
    }
    #why-us-block-container{
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
        width: 80%;
    }
    
    .why-us-block{
        margin-bottom: 50px;
    }
    .why-us-block-header{
        font-size: 1.7em;
    }
    .why-us-block-desc{
        font-size: 1.3em;
    }

    #footer-big{
        height: 100vh;
        padding-top: 100px;
        flex-direction: column;
        justify-content: space-around;
    }
    #footer-big-first-block{
        padding-left: 10px;
        width: 100%;
        margin: 0;
    }
    .footer-block1-item{
        width: 100%;
        justify-content: flex-start;
        margin-bottom: 10px;
    }
    #footer-big-second-block{
        display: none;
    }
    #footer-button-up-container{
        display: none;
    }
    #footer-big-first-block{
        border: none;
    }
    #add-first-item-img-container{
        display:flex;
        justify-content: center;
        margin-top: 20px;
    }
}