Change The Editor Border On Focus

This is kind of a silly example, but instead of using :focus, the default styles use :focus-within. Let’s make it super obvious how we can changed the border color on :focus-within

rhino-editor .trix-content {
  border-width: 3px;
  border-color: blue;
}

rhino-editor .trix-content:focus-within {
  border-color: red;
}

Pretty straightforward! But worth documenting since most people would expect to override :focus.