Why has SimDif chosen a Menu with Tabs on the Left?

Why SimDif Sites have a Menu on the Left (tabs) but Not a Top Menu (drop-down)

Both Horizontal and Vertical menu layouts have their advantages and disadvantages. SimDif chose a vertical menu with tabs on the left for several reasons. If you have been using SimDif for a while you will be familiar with some of the following benefits.

Clear Landmarks:
Tabs always show your visitors and clients exactly where they are and where they can go on your site. With tabs, visitors can more quickly understand what you offer.

Clarity:
You can use longer menu names in tabs. This is great for both your readers and for search engines to better understand where each tab leads to. Of course, concise and to the point tab names are still the goal. But at least with tabs, if you need an extra word or two to be clear, you won't run out of space.

Mobile-Friendly:
Many of your site visitors use phones. A vertical menu of tabs is the universal layout of mobile menus, and using this layout on computers helps maintain a uniform look across devices.

Note: With SimDif's new "SuperPhone" layout for computers, your website can now show the mobile hamburger menu on all devices.

Tabs are Always Visible on Computers:
Most websites with a horizontal navigation use drop-down menus, which you have to hover over to choose, after which visitors quickly forget the other options in the drop-down.
Tabs are like always visible sign posts helping visitors to explore your website more.

Easily Expandable:
Adding more items to a vertical menu is much easier because of all the extra space. With a horizontal menu, to add another page often means you have to remove an existing page, or hide it in a drop-down.