Need a CSS expert

Hello BHW! I have a webpage I am working on with a Avada theme. I have a custom animated background I cannot get to work. I have tried everything. I am willing to pay you for your time if you can make it happen. Shoot me a PM or reply here! I can explain in further detail.

Thanks in advance!

Can you provide me site link and credentials I have to check it whether it can be doable or not.