Can you only go up to h6?

Answer 1

yes, there is no h7 😀
you can create some class in css for styling text if you need font-size smaller than h6

Answer 2

awesome thank you

Answer 3

yes we use always heading tags till h6...

contradiction:
but we want the same font size like h4 to another heading we can use its twice are trice , but its show some time problem to reed and allocate on domain server site...

may be i am wrong but any one have ans then reply me...