body {
    background-color: black;
}

.container {
    font-family: monospace;
    text-align: center;
    color:white;
    background-color:black;
    position: absolute;
    top: 50%;
    left: 50%;
    -moz-transform: translateX(-50%) translateY(-50%);
    -webkit-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
}