Had some trouble focusing on an element. When selecting an option from dropdown menu, page kept scrolling to bottom.
Did not find a good explanation online. Here is what worked for me
Find the element you want to focus on (in my case link text was : Welcome Everyone) and then send NULL key to that element.
If you will be using this solution do not forget to import the Keys module
from selenium.webdriver.common.keys import Keys
helped by this post on stackoverflow.com