#logo svg {
    height: 70px;
    width: 70px;
}
#logo svg path {
    stroke: black;
}
#light {
    background: red;
    box-shadow: 0 0 80px red, 0 0 30px FireBrick, 0 0 6px DarkRed;
    border-radius: 50%;
    height: 80px;
    width: 80px;
}
#light, #logo svg {
    position: absolute;
    top: 50%;
    animation: swing 4s ease-in-out infinite, spin 2s linear infinite;
}
@keyframes swing {
    0% {
        left: 90%;
    }
    50% {
        left: 10%;
    }
    100% {
        left: 90%;
    }
}
@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

input[type=checkbox] {
    position: absolute;
    left: 0px;
    top: 0px;
    margin: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}
#controls {
    display: none;
}
input[type=checkbox]:checked ~ #controls {
    display: block;
}
#reload {
    display: none;
}