In a video on YouTube, Google’s John Mueller said that the desktop version of your web pages will influence the position of your web pages in Google’s mobile search results. A user was afraid that hidden content in the mobile version of his web pages had a negative influence on the rankings:
Less is more! The basic mentality for most people is “fill the space”, which leads to things looking messy and cluttered. Allow images and text to breathe. White space in your design will draw the eye to more important components. If your layout is unorganized, the reader won’t know what to focus on and you run the risk of losing your main message.
Essential as it is to leave space amongst design elements, it is also important to stay clear of page edges. Give yourself at least a quarter inch border.