<body bgcolor=black text=white>
The three red squares below should all look the same and be filled only with black.<br>
<iframe style="border:10px solid red;padding:25px" width=100 height=100 src="about:blank"></iframe>
<object style="border:10px solid red;padding:25px; width:100px; height:100px" data="about:blank"></object>
<object style="border:10px solid red;padding:25px; width:100px; height:100px" data="about:blank"></object>
</body>