left

This property defines the x (horizontal) coordinate for a positioned element, relative to the left side of the containing element or browser window. Given that the containing element itself may be positioned, the value of left does not always relate to the distance from the browser window. Values can be specified as lengths (inches, pixels, and so on), as a percentage of the containing object's dimensions, or as auto.

Examples

#div1 {position: absolute; left: 120px; top: 50px;}
#div2 {position: absolute; left: 30%; top: 50%;}
#div3 {position: absolute; left: auto; top: auto;}

Browser and CSS Support Notes

CSS2
IE 4, 5, 5.5, 6
Nav 4, 4.5-4.8, 6, 7
Opera 5, 6, 7