My facebook page is distorted.

Question

My facebook page is distorted. What is normally at the top of the page is now showing up 1/2 way down and above it is all white. i cant respond or post anything. and what i can read is limited. what was normally to the right of the screen is now ABOVE the section that is 1/2 way down and words overlap - like "notifications" will overlapp another word that is listed nearby. i can copy it i guess if you think you can help.