How to isolate a navigation element and alter its style.

On 11/23/2022 at 11:53 PM, lakeshoreexterior said:

If you look at my page, I have a couple navigation links and a phone number. I'm happy with everything except for the phone number. I'd like to make it separate from the other navigation links and even make it bigger and change the font style if possible. 

https://www.lakeshoreexteriorcleaning.net/

Would this be possible?

Add to Design > Custom CSS

header#header [href*="tel"] {
    color: red !important;
    font-size: 30px !important;
}