Streamline line theme

hi I’m using streamline theme from micheal davis

1.the site is in hebrew so i had to use the rtl code to the body which works fine when the sidebar is set to the left.
when it set to the right look like the side bar goes over the site and the menu. its not pushing the body to the left .
any fix for it?
2.on window machine (any version, includes 10) i get scroll bars everywhere. i liked the clean view like on the mac. how to remove scroll bar?