body {
    background:black;
    animation: pulsate 5s ease-in-out infinite;
    height: 100%;
    margin: 0;
}

@keyframes pulsate {

    /* You can add more % with more colors! */
    0% {
        background-color: black;
    }

    50% {
        background-color: rgb(22, 22, 22);
    }

    100% {
        background-color: black;
    }
}

html {
    height: 100%;
    margin: 0;
}

a {
    color: white;
}

.bgimg {
    height: 100%;
    background-position: center;
    background-size: cover;
    position: relative;
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-size: 25px;
}

.topleft {
    position: absolute;
    top: 0;
    left: 16px;
}

.bottomleft {
    position: absolute;
    bottom: 0;
    left: 16px;
}

.middle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

hr {
    margin: auto;
    width: 40%;
}