Hello Diego

Now I got it, Actually, it’s a single page title not archive page posts title.

Add this Css

.single .entry-title, .page-title{
  font-size: 24px;
}

Have a good day

Regards,
Psink

Hello Michael

I guess currently modern is active in the menu type. Please change it to classic.

for reference see the screen record
https://www.awesomescreenshot.com/video/2372990?key=60a9a941c5059d789aeb1a9a55015295

Regards,
Psink

Hello Diego

You can send it here

Regards,
Psink

Hello Michael

I guess “Yoga Therapy Title” and “with all the Biggest Brands of Fashion” are coming from customizer >> Header Media. Can you please check there once?

Regards,
Psink

Hello Stern Chic

Here we have a few CSS to fix the issue that you are dealing with

CSS To remove page name under the header

.singular-content-wrap article header.entry-header {
    display: none;
}

CSS To remove underline for link

.entry-content a:not(.more-link):not(.button), .entry-summary a:not(.more-link):not(.button), .ew-about a:not(.more-link):not(.button), .widget_text a:not(.more-link):not(.button) {
    text-decoration: none !important;
}

To Add in the theme
Please Go to Admin Panel >> Appearance >> Customize >> Additional CSS, here paste above CSS then published

Hope this helps

Regards,
Psink

Hello dave_r

Can you please share your wp-admin user and password. We will figure out the actual issue and help you to import demo data

Regards,
Psink

Hello Stern Chic

Can you please share your site URL. It would be easy to inspect and give you valid CSS

Regards,
Psink

Hello @Adriana

Yes, you can achieve it by adding a custom navigation menu code on a particular page using a custom HTML block. Also, you need to add all the CSS in Additional CSS
necessary for a custom navigation menu.

if you get any confusion while doing it, please let us know

Regards,
Psink