This is an anonymous box created in a DIV before a SPAN.
We are about to take this span out of the normal using the the float method.
Now we have
given it a width of 4cm using the width propert. Now we have another
anonymous box created
after the span.
This is a second DIV and it's to demonstrate how the tedxt flowsround the inline
flow object that we have taken out of the normal flow using the width and float properties.
In a moment, using the clear property, we will make this text start after the SPAN.