submit button css ignored

Hello, I am demoralized !
I am tyring to do a very simple thing but with no result - all I need to do is change the background color of the submit button on hover/focus
I have tried Extra Attrivutes with style as well as Custom CSS, see example
.ui.green.button:hover .ui.green.buttons:hover .button:hover { background-color: #303030 !important; }
I am using the default green - even changed the default hover color from #16ab39 to #303030 within the various ccs files in /httpdocs/libraries/cegcore2/assets/semantic-ui/components.
What is wrong?
many thanks in advance
Rita

have you tried putting it in a "Custom CSS" element?

yes, this is the content of the Custom CSS:
.ui.green.button:hover .ui.green.buttons:hover .button:hover { background-color: #303030 !important; }

Hi Rita,
​
Please post a link to the form so we can take a quick look.
​
Bob

Hi Bob,
https://hostingperaziende.it/
please see on lightgreen background button "Richiesta Contatto"very many thanks in advance

Should be a comma between all those entries buddy.

Not that it's helping, it still won't let me change the color on hover.

thanks for trying - but comma or not makes no difference

Hi Rita,
​
This seems to work when I test:

button.#button15 :hover {
  background-color: #303030 !important;
}

Bob

Hi Bob, yes it should work - but it does not on me 😢I want to upload 2 images - but not sure it worked - please let me know if they have not come to you
kind regards
Rita

sorry - I have changed browser from Firefox to Chrome and now see that my upload are there

yes it works in the preview - but not through the site template view which ignores the css entered for this button

Hi Rita,
​
It looks as if your CSS is not being loaded in the page. Is the CSS action before the Display SEction action? If not please move it up.
​
Bob

Hi Bob, yes I have moved it up (actually I have moved it up and down before on my endless attempts)
kind regards
Rita