If there are any elements between the header and navigation bar, you will not be able to resolve this issue through CSS ... HTML. The HTML Code for Nested Lists. HTML offers a flexible way to ...

Create an HTML section for your navigation bar ... If you do not apply a background property to your navigation bar in CSS, it will display with a transparent background by default.

Items are automatically added to your horizontal navigation bar as you create top-level pages. Unlike a vertical navigation bar, there are limitations to the number of top-level links you can include ...