.rot-meta {
    writing-mode: vertical-rl ;
    text-orientation: sideways;
    color: red ;
}
.page-container {
    display: flex;
    margin: 0 auto; /* Center the container */
}
.left-column {
    flex-basis: 3em ;
    flex-shrink: 0;
    margin-top: 8em ;
}
.right-column {
    padding-right: 20px; /* to fix obfuscation by scrollbars */
    min-height: 50em;
    flex-grow: 1; /* Allow column to take the remaining space */
}