body {
    font-family: sans-serif;
    padding: 1em;
    background: #f4f4f4;
}

nav a {
    margin-right: 10px;
    text-decoration: none;
    color: #0066cc;
}

.content {
    margin-top: 20px;
}

.item {
    margin-bottom: 2em;
    padding: 1em;
    background: #fff;
    border-radius: 8px;
}

.view-text .item img {
    display: none;
}

.view-image .item p {
    display: none;
}