body, html {
    background-color: #080808;
    height: 100%;
}

h1 {
    font-family: 'Courier New', Courier, monospace;
    font-size: 1em;
    font-weight: normal;
    color:coral;
    text-align: center;
}
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.imagebox {
    border: 0px solid lime;
}