No Margin / No Margin Bottom
tight fit
Normally we add extra space around sections, and added space between content sections for ease of reading and general content alignment. That is not always what you want to do when it comes to your layout. If you have the need to eliminate this you can do it.
Note
This can work but may result in a very busy web page. Please use appropriately.
Example of the space between sections.
Example of the included margin space.
Example using NoMarginBottom and NoMargin.