APEX 5.1.3
Chrome latest version
Universal Theme 42
DB 12.2
I have a modal dialog page (500pxX300px) and I would like to change the background color of the title so it looks like this:

I can do this succesfully through the chrome inspector by changing the following:
body .ui-dialog .ui-dialog-titlebar {
- [ ] background-color: #E4002B;
}
How do I translate this code into css for the APEX page inline CSS ? Putting it in as is, doesn't work. I've also tried using !important with no effect.
thanks in advance
PaulP