body {
    width: 100%;
    height: 100%;
    background: url('../images/fullbg1920.png') center center fixed;
    background-size: cover;
    -webkit-background-size: cover;
    -moz-background-size: cover;
}

body:after{
    position:absolute;
    width:0;
    height:0;
    overflow:hidden;
    z-index:-1;
    content: url('../images/fullbg1920.png');
}

div.main {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

img.logo-with-sub{
    min-width: 300px;
    height: auto;
}

div.controls-home{
    margin-top: 20px;
    margin-bottom: -60px;
}

div.controls-home > div {
    text-align: center;
    padding: 5px;
}

a.control-btn{
    font-size: 5em;
}

@media (max-width:320px){
    img.logo-with-sub{
        width: 280px !important;
        height: auto;
    }
}


@media (min-width:1025px) {
    img.logo-with-sub{
        width: 450px;
        height: auto;
    }
}