I happened several times, when consulting Wikipedia from mobile, to find uncomfortable scrolling only vertical, finding frustrating going up and down between the different paragraphs. Precisely for this reason I thought, for fun, of an alternative solution to improve the user experience in consulting the most famous digital encyclopedia in the world.
The wise is he who knows he does not know
After a quick overview of synthesis, the navbar with the different paragraphs is fixed under the header and allows the horizontal consultation of the different items.
I want to know this and this too
By selecting the items, navigation is faster and more intuitive, allowing you to select the chapter of interest without losing the current selection.
Don't be afraid of upside down
The navigation between the chapters is smooth and linear, allowing the user to change his voice even during scroll or forwarded reading.