This text is for ID1 and can be as large or small as needed. It is also search engine friendly.

This text is for ID2 and can be as large or small as needed. It is user selectable and can be used as needed.

This text is for ID3 and can be as large or small as needed. It is available to the user as needed.

This text is for ID4 and can be as large or small as needed. It can be used as different languages.

Do not put a button on the last section; your page is done, the user can't go any farther.

You could always add a button to reload the page: