#blackoutOverlay {
    display: none;
    background-color: black;
    opacity: 0;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 10;
    pointer-events: none;
    animation: fadeTransition .5s 1;
    -webkit-animation: fadeTransition .5s 1;
}

#horizonLine {
    z-index: 11;
    position: absolute;
    margin-top: 50vh;
    width: 100vw;
    height: 5px;
    background-color: tomato;
    pointer-events: none;
}

#vertLine {
    z-index: 11;
    position: absolute;
    margin-left: 49.8vw;
    height: 100vh;
    width: 5px;
    background-color: rgb(62, 180, 62);
    pointer-events: none;
}

#blackoutOverlay.active {
    display: block;
}

@keyframes fadeTransition {
    0%{ opacity: 0; }
    50%{ opacity: 1; }
    100%{ opacity: 0; }
}

@-webkit-keyframes fadeTransition {
    0%{ opacity: 0; }
    50%{ opacity: 1; }
    100%{ opacity: 0; }
}