I've just been reading the HTML5 author spec. It states that the , and tags are optional. Does that mean that you can leave them out completely and still have a valid HTML5 document?

If I'm interpreting this correctly, it means this should be completely valid:

Hello!

Is this correct?

You can check out the spec here:

http://dev.w3.org/html5/spec-author-view/syntax.html#syntax

"8.1.2.4 Optional tags" is the bit out about it being OK to omit , and