header 1, 3 empty will follow

After.


header 2

div1

Paragraph, 3 empty paragraphs will follow

After.


Three empty divs will follow

After.

Three empty divs will follow, second with explicit height:50px


Three non-empty divs will follow, second with explicit height:0px

First
Second
Third

Three empty divs will follow with (empty) text between

After.