A little help with a CSS selector?

It does work for me:

Make sure you’re using the latest JS code, and you did update properly the CSS!


@Turtle Ignore my code, actually I did not see there an attribute with the username you can use.

.chat-message-info__username[data-user-card="Kat_Mac"] {
    .chat-message-info__username__name {
        color: red;
    }
}