What is the difference between these ? Is the quotation marks really important?

Question

<align="right" > and <align=right>

Answer 1

You must use the "quotes" to specify the value of an element, which in this case is <align>. You may be able to get away with it with certain browsers, but it's good practice just to do it the right way. Cheers.

Answer 2

Or you can use single quotes. id='thing1'

Answer 3

Sorry,but I still cannot understand why the Quote doesn't Make some differences