body {
    background-color: black;
    color: white;
    margin: 0;
    font-family: Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: black;
    text-align: center;
    padding: 20px 0;
    font-size: 2em;
    z-index: 1000;
}

.links {
    margin-top: 10px;
    font-size: 1em;
}

.links a {
    color: #00ffff;
    margin: 0 15px;
    text-decoration: none;
}

.links a:hover {
    text-decoration: underline;
}

.content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 120px; /* room for header and links */
    text-align: center;
}

img {
    max-width: 100%;
    height: auto;
}