Changing Text size within Navigation Button

Hello everyone,

I've been facing difficulties in locating the correct code to adjust the font size of my navigation button without enlarging the button itself. Does anyone happen to know the correct code for addressing this issue?

The "shop" text appears significantly smaller compared to the rest of my header font.

You can edit page (any pages) > Click Site Styles icon on top right of screen > Fonts

Then click on Button on Left Side > Right Side will show correct box where you can change button text size

or if you want to use custom code, add this code to Website Tools (under Not Linked) > Custom CSS

a.btn {
	font-size: 10px !important;
}