== Demo for the invalid interpretation of the CSS box model by internet explorer < 6 == [http://search.mpi-sb.mpg.de/markus/examples/box-modell/test1.php Test 1] [http://search.mpi-sb.mpg.de/markus/examples/box-modell/test2.php Test 2 (quirks mode)] == style.width versus offsetWidth == style.width is a read/write property of an element and is the width of the content area of the object. offsetWidth is a read-only property and means the effective width of the element including padding of the element. Example: {{{