CSS Positioning Tutorials
CSS positioning properties allow you to place HTML elements exactly or relatively where you want them.
CSS relative positioning tutorial
CSS relative positioning allows you to position HTML elements
relative to it would statically have been positioned. Think of it as
changing the position from where it originally would have been if relative positioning had not been applied.
CSS absolute positioning tutorial
The CSS absolute positioning property allows you to position an HTML element
in a specific place in a document using the top, right, bottom and/or left properties
using either positive or negative CSS length units such as px, em, and cm or percentage values.
CSS fixed positioning tutorial
CSS fixed positioning allows you to place an HTML element in a fixed position on
a web page, even if the page is scrolled up or down.