<!DOCTYPE HTML>
<html>
<body>
<div><span></span> Hello</div>
<div><span style="border:1px solid transparent"></span> Hello</div>
<div><span style="outline:1px transparent"></span> Hello</div>
<div><span style="padding:1px"></span> Hello</div>
<div><span style="margin:1px"></span> Hello</div>

<div><span> </span> Hello</div>
<div><span style="border:1px solid transparent"> </span> Hello</div>
<div><span style="outline:1px transparent"> </span> Hello</div>
<div><span style="padding:1px"> </span> Hello</div>
<div><span style="margin:1px"> </span> Hello</div>
</body>
</html>