Which button do you want moved and where do you want it? The first can be moved to bottom left easy. The other three are relative to it so moving them is harder. Moving the first to the top would require changing the others to go below the first.
Of course there is no result, because this is the position of the code button that you provided.
I just highlighted the part of the code in which you need to change the values according to your desire. And you just copied and pasted? -)
In order for the result to be, you need to start learning CSS. Well, or at least learn how to disassemble the code into its components, as Calvi did ղ and work with it. Do not be afraid to make changes ☺