left

Values

<length> | <percentage> | <auto>

All positioned elements (elements that don't have position: static;)

Left defines the distance between the left side of an element and the left side of its surrounding block.

body .box{
position:fixed; left: 10px;
}
div#border{
position:absolute; left: 0;
}

Chrome	Firefox	Internet Explorer	Opera	Safari
1.0+	1.0+	5.0+	6.0+	1.0+