In CSS by using float,elements flow horizontally i.e left or right.
It is mostly used along with images to flow towards left or right.
It can also be used to create next and previous buttons on a page, fitting to any resolution. This is better than other methods used to represent the next and prev buttons like
the tables or
using 2 buttons and space between them.
The above 2 methods are good but with change in resolution or browser, they get overlapped or so..
example:
*****************************some text goes here**************************
This effect can be generated with float, also we can play with images also