which one is correct?
Thanks for/ to everybody's hard work.
Thanks to (as a result of) everybody's hard work, the open day was a great success.
Thanks (gratitude) to everybody for their/your hard work. We could not have managed without you.
Thanks (gratitude) for everybody's hard work. We could not have managed without it/you.
This means that it depends on my intention. Am I right?
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.