How do i create the left and right spaces for uses such as adding a side menu or advert space?

Answer 1

The space is "created" automatically when you float or position the elements correctly.

Answer 2

When you float an element, you have to clear the float for the element that comes after it:
clear: left; clear: right; or clear : both;
Then they'll have the default left positioning.

To center these elements, give them a width and margin: 0px auto; /adjust the margin*/.
Don't use tables for layout.

Answer 3

if i float right and left ...how am i able to centre the rest of the body ?

Answer 4

do i have to use tables ?

Answer 5

do i have to use tables ?

Answer 6

what you want to create?