The QSeparator component is used to separate sections of text, other components, etc… It creates a colored line across the width of the parent. It can be horizontal or vertical.
Take the following just as examples. Doesn’t mean you can use QSeparator only on QCard, QList or QToolbar.
Horizontal with inset
Color CSS classes
Should you need, there are four special Quasar CSS classes which apply the color of QSeparator: