Opera 7 beta 1 returns wrong DHTML object model property values

WidthHeight
paragraph.client
paragraph.offset
paragraph.scroll

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The stylesheet for this page is:
html {background-color: yellow; border: 4px solid blue; padding: 64px;}
body {background-color: white; border: 4px solid red; color: black; margin: 32px;}
p#idParg {border: 6px solid green; height: 200px; overflow: auto; width: 200px;}