Step 6 of 8.1.2.1 Start tags of the HTML5 spec says that void elements may have a single /
character. I think this is so it\'s easier to migrate sites
Mostly it depends if you want to go the XML route or not. Both should render correctly, as the HTML5 spec does not require self-closing tags - their only reason is that the document is then valid XML.
The easier way is to probably just write then without the self-closing "/", unless there's a specific need to get the markup parsed as XML - in that case you also need