Floating Elements and Margin Properties

example floated

   image This div contains a floated img element: -- the element is floated to the left using the float: left property. All images have a 10 pixel white padding space, surrounded by a thin black border. This image has no special margins, so it is flush with the left edge of the div. Note the text flow around the image.
example floated

   image This div contains a a floated img element: -- the element is floated to the left using the float: left property. This uses negative top and left margins to move the image over the preceding div. Note how text in the markup after the image flows around the image, obeying the margins set by the img element's right and bottom margins (1em).
example floated

   image This div contains a floated img element: -- the element is floated to the left using the float: left property. This img uses negative right and bottom margins to move the "flowed" text such that it overlaps the image. Note how the text overlaps the image.