How do I move a file in SharePoint/OneDrive to a folder in the same SharePoint/OneDrive account? I'm on a Mac.

On my iMac in Safari, I have some documents in OneDrive/SharePoint that I would like to move in to a folder I created in OneDrive/SharePoint, under the same Office365 account. How do I move them? There doesn't seem to be a way.

Thank you!