CSS3.0 Generator. CSS Reference » Learn CSS3. Absolute Positioning Inside Relative Positioning. A page element with relative positioning gives you the control to absolutely position children elements inside of it.
To some, this is obvious. To others, this may be one of those CSS "Ah-ha! " Moments. I remember it being a big deal for me when I first "got it". All About Floats. What is "Float"?
Float is a CSS positioning property. To understand its purpose and origin, we can look to print design. The CSS Overflow Property. Every single element on a page is a rectangular box.
The sizing, positioning, and behavior of these boxes can all be controlled via CSS. By behavior, I mean how the box handles it when the content inside and around it changes. For example, if you don't set the height of a box, the height of that box will grow as large as it needs to be to accommodate the content. But what happens when you do set a specific height or width on a box, and the content inside cannot fit?