Since Sydney Theme update menu font too small

@veralisl thank you for contacting us.

Try adding this CSS code to Appearance > Customize > Additional CSS from dashboard.

#mainnav ul li a {
  font-size: 18px;
}

Regards,
Kharis

Thank you, this worked. I put font size at 20px and it’s perfect.
Regards Vera

You’re welcome @veralisl!

Please let us know in a new topic if you have any further questions, or if we can provide you with any other assistance.

Regards,
Kharis