Drop-down menus obscure image

Hi all,

So I was experimenting with "Styles" and wanted to look at some black and white or monochrome images of my shots. But if you go to the drop-down menus: Adjustments > Styles > Built-in Presets > Black and White, etc. etc., etc., by the time you can select a pre-set or a style, the entire image in the viewer is obscured by the drop-down menus. I'm sure I'm doing something stupid. Is there a way to get to these drop-down menus without blocking the entire image? I'm on a Macbook Pro using Yosemite with all the latest updates. Would appreciate any advice. Thank you!