* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

#navigation {
    background-color: #333;
    color: white;
    padding: 10px;
}
#navigation ul {
    list-style-type: none;
    display: flex;
}

#navigation ul li {
    padding: 10px;
}
#navigation ul li a {
    color: white;
    text-decoration: none;
}

#imageholder {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}
#imageholder img {
    /* width: 90vw; */
    height: 90vh;
}