body {
    margin: 0;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
h1 {
    margin: 0;
    display: block;
}
.block {
    background-position: center center;
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-image: -webkit-radial-gradient(#01aad5 30%, #007998 100%);
    background-image:    -moz-radial-gradient(#01aad5 30%, #007998 100%);
    background-image:     -ms-radial-gradient(#01aad5 30%, #007998 100%);
    background-image:      -o-radial-gradient(#01aad5 30%, #007998 100%);
    background-image:         radial-gradient(#01aad5 30%, #007998 100%);
}
.home {
    width: 370px;
    height: 370px;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    justify-content: center;
    align-items: center;
}
@media all and (max-width: 480px) {
    .home {
        width: 240px;
        height: 240px;
    }
    .home img {
        width: 85px;
        height: 85px;
    }
}