body {
    margin:0;
    background:black;
    color:white;
    font-family:monospace;
    overflow:hidden;
}

.page {
    position:absolute;
    width:100%;
    height:100%;
    display:none;
    justify-content:center;
    align-items:center;
    flex-direction:column;
    opacity:0;
    transition: opacity 0.6s;
}

.page.active {
    display:flex;
    opacity:1;
}

.buttons button {
    display:block;
    margin:15px;
    padding:15px 30px;
    background:rgba(0,0,0,0.7);
    border:1px solid #00f0ff;
    color:#00f0ff;
    cursor:pointer;
    transition:0.3s;
}

.buttons button:hover {
    background:#00f0ff;
    color:black;
}

.back {
    position:absolute;
    top:20px;
    left:20px;
    background:none;
    border:1px solid white;
    color:white;
    padding:10px;
}

.aboutBox {
    text-align:center;
    max-width:400px;
}

.aboutBox img {
    width:200px;
    border:2px solid white;
    margin-bottom:20px;
}