This is an abandoned project. Existing features might get maintained, modified or removed, but NO new features would be added.
A paragraph has default margins. Hyperlinks are like this.
Buttons have no margins by default - but they do have paddings.
Buttons can also be grouped like below.
Button classes can also be used for pagination.
I am main content:
like a normal div, will cause margins collapse and will not clear floats.
Hello world is the universal language among programmers.