Bootstrapped wells can be used to create headings or emphasize content.
The world class adds a rounded border around an element with a light great background and some padding
as shown in this example the wells come in different sizes including small normal in large.
Let's take a look at the code
here.
We can see three divs each div has a different class.
The first div Has the well class with a well small class attached to it as well and that's what gives
us the small well the next div uses the well.
The well class as well with no size specified.
This will create the default normal well size.
Lastly we have a div with a well and well large class.
This is used to create a large well.