sidebar size

Hey guys,

Few more questions on the same topic.

On the website http://www.yonaco.com/kenes/

I am trying to edit the sidebar, on the dashboard it’s sidebar 8.

My questions are:
1 – How do I change the size of the sidebar so it fits the size of the Yonaco logo above it?

2 – How do I make the 2 images to be closer to each other?

3 – Is it possible to chale the light green sidebar line to navyblue? ( only sidebar 8)

Thank you all so much for all the help,

Dan