body {
    background: url("../images/skyline.png") rgb(61,123,117) no-repeat center bottom fixed;
    background: url("../images/skyline.png"), radial-gradient(circle, rgba(61,123,117,1) 0%, rgba(34,34,34,1) 96%) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}

.logo-image {
    width: 150px;
    height: auto;
}

select {
    -webkit-appearance: none;
    appearance: none;
}