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<!DOCTYPE html>
<html>
<meta charset="UTF-8">
<title>CSS Position Reference: Box inset properties & position:fixed root element</title>
<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
<style>
html {
display: block;
position: fixed;
left: 10px;
right: 20px;
top: 30px;
bottom: 40px;
border: 5px dashed black;
box-sizing: border-box;
}
</style>
The black border should encompass the whole viewport,
with a bit of space on each side.
<br><br>
It shouldn't just shrinkwrap this text's height.
</html>