Downloading and Setting Wallpaper
Click the link next to the wallpaper image that corresponds to the screen resolution of your computer. You will be taken to a new page with the image.
Right-click on the image once it has loaded completely on the page. Select “Set as Desktop Wallpaper” from the drop-down menu that appears. (Note: Chrome users may need to save the image to your desktop and then set it as wallpaper.) Go to your desktop to view the new wallpaper image.
Mac users (OSX)
Allow image to load completely on the page. Control-click and select “Download image to Disk,” saving the image to your desktop. From the Apple menu, select System Preferences, and then “Desktop.” Drag the downloaded image onto the “Current Desktop” image in the window. Go to your desktop to view the new wallpaper image.