body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

.background {
    position: relative;
    height: 100vh;
    width: 100vw;
    background-color: #000000;
    z-index: -2;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.ascii-image {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    z-index: -2;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.full-page-overlay {
    position: absolute;
    transition: opacity 1s ease-in-out;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}