title: Change the background of my webpage with local storage
body: <p>For a <strong>very</strong> long time I have been wondering how to change my background-image on a webpage I code, but when the user refreshes my website I want their changes to still be there. Like they change the background with a click, and when they refreshes the page I want that background to still be there for them. Do I have to use local storage or cookies? In that case can someone teach me how?</p>
  
  <p>Thank you for taking your time to read this and I hope I get a good answer.</p>
  
  <p>An example of my code: <a href="http://koda.nu/arkivet/33733671" rel="nofollow noreferrer">http://koda.nu/arkivet/33733671</a> (password: "cwm", open in fullscreen). And I do have tried to learn localStorage.</p>