CSS - Picks and choose what overrides/works?

So I have set up a theme and have my CSS overriding the default. Unfortunately XIBO picks and chooses what it overrides, unlike developing a website, some stuff works and some stuff doesn’t. I have tried the exact same CSS/HTML combo in JSFIDDLE and it works like a charm. Bring it into XIBO and… Nothing?

Is there something in the documentation that mentions CSS issues?

I’m afraid we’d need more details and perhaps see what you’ve done, otherwise it’s rather hard to say why your custom code does not work as expected.

I can make changes to almost everything except for the DIV and or Tables in my ticker.

For example, if I have a table named “default-table” and in my override.css file I stylize it as such:

table.default-table tr td {
	background-color: #000000;
    padding: 15px;

None of that information is utilized. However, my .default-table is stylized and that information IS accepted. THe same applies for stylizing H1 tags inside of said table etc.

I really hope I’m just overlooking something, as I’ve tried to write my CSS in numerous different ways (bg-color instead of background-color etc) but to no avail.


Update: Just tried overridng the H1 tag as a whole

H1 {
      font-size: 82px;