body{
    background-color: #090400;
}

@media only screen and (min-width: 813px) {
    .desktop{
        max-width:2560px;
        width:100%;
        height:auto;
        text-align: center;
        padding-top: 15%;
    }
    .mobilka{
        display: none;
    }
}

@media only screen and (max-width: 812px) {
    .desktop{
        display: none;
    }
    .mobilka{
        max-width: 812px;
        width: 100%;
        height: auto;
        text-align: center;
        padding-top: 50%;
    }
}