Fitting menu on one line – Omega Lifestyle

Also I’d like the menu to be centred – I’ve figured out how to do that using css but can’t seem to get the menu on one line or reduce the space between menu options.

My website is:
https://www.perpetuallydreaming.com
(still in the process of setting it up so excuse the lack of content)

try this

.omega-nav-menu a {
    padding: 10px 10px;
}

Thanks so much!!!