Navigation throughout the web is done by "scroll" in both directions. At the top is a navigation bar that will allow you to quickly jump from one section to another by clicking on the links. In the part of the right is the language selector and the launcher of the accessible version.
There are sections during navigation that include a button on the top right to interact with that section. If you click on this button you can perform different actions within the section. If you want to continue with navigation, it would be enough to press the same button that was pressed initially.