Jason Zouikri782 Points
1:38 "Second Paragraph has a Bottom Margin"
To me, it seems unclear as if the second paragraph text (inner) has the margin or simply the <p>paragraph</p> text causes the "third paragraph" to have leading space (or second has trailing space).
Thurston Daly1,631 Points
From what I'm seeing, the <p> and </p> tags will add margin before and after the text. This is why you see a space before the text not using the <p> tags that is entered immediately after the </p> but no space when text is added following text without a </p>