You can turn the top menu into a “sticky menu”, meaning it will stick to the top of the page even as you scroll down.
To enable (or disable) this, follow these steps:
- Go to Appearance -> Customize.
- Click into the “Menus” panel.
- Click the “Menu Settings” section at the top.
- There you’ll see a checkbox for “Stick menu to top of page”. Check or uncheck it and save.