Long sidebar requires scrolling main content

[bitwombat]

When the sidebar is long, the user can't get to the lower items without scrolling the main content window all the way to the bottom.

Good example here:
https://docs.zendframework.com/zend-form/advanced/

Easiest fix is just to take the position:sticky off of .sidebar.

[froschdesign]

Easiest fix is just to take the position:sticky off of .sidebar.

Then we would lose the comfort of visible sub-navigation. Compare with:

• https://docs.zendframework.com/zend-barcode/renderers/
• https://docs.zendframework.com/zend-mvc/routing/

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I working already on some improvements for the sub-navigation. Included is also a solution for very long navigations like in zend-expressive, zend-form and zend-view.