OwlBoard/static/styles/boards.css

/* Loading Box: */
@keyframes spinner {
    0% {
        transform: translate3d(-50%, -50%, 0) rotate(0deg);
    }
    100% {
        transform: translate3d(-50%, -50%, 0) rotate(360deg);
    }
}
.spinner::before {
    animation: 1.5s linear infinite spinner;
    animation-play-state: inherit;
    border: solid 5px var(--overlay-color);
    border-bottom-color: white;
    border-radius: 50%;
    content: "";
    height: 40px;
    width: 40px;
    position: absolute;
    top: 30%;
    margin: auto;
    transform: translate3d(-50%, -50%, 0);
    will-change: transform;
}
#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: auto;
    background-color: var(--overlay-color);
    border-radius: 45px;
    padding: 20px;
    padding-bottom: 1px;
    min-width: 90px;
}
#loading p {
    padding-top: 50px;
    font-weight: bolder;
}

/* Content: */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: var(--overlay-color);
}

#station_name {
    position: absolute;
    left: 10px;
    top: -15px;
    text-transform: uppercase;
}

.header-right {
    text-align: right;
    padding-right: 5px;
    margin: 4px;
}

#footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background-color: var(--overlay-color);
}

#footer img {
    height: 35px;
}