body, html {
    background-color: #222222;
    height: 100%;
    margin: 0;
    overflow: hidden;
}

.container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.text-center {
    max-width: 80%;
    margin: 0 auto;
}

.img-fluid {
    transition: transform 0.3s ease;
}