After a page reload I can't see my current changes.

This could be a browser cache problem. Browser caching is generally a good thing, why download the same page again and again while you can download it once and save it on the browser? But if you edit a web page online this is not a wanted behavior.

Follow these steps to change browser cache settings:

Changing Internet Explorer Cache Settings (PC)

1. Click on the Tools Menu > Select Internet Options
2. Click on the General tab > Under Browsing History, click on the Delete ... button.
3. In the Temporary Internet Files area, click the Delete Files ... button to clear the cache.
   Close that window.
4. Next, click on the Settings button (still in General > Browsing History area) and check, "Every time I visit the webpage".
5. Click the OK button at the bottom of the Settings window.
6. Click the OK button at the bottom of the Internet Options window.

Changing Mozilla Firefox Cache Settings (PC)

1. Open a browser window, delete the address in the URL bar and type about:config. Press the Return key to see Firefox settings. NOTICE: do not include the http prefix here
2. Scroll down to browser.cache.check_doc_frequency. It should be set to 1. If it's not, double click on the text and in the resulting dialogue box, enter 1 and click OK.
   
   Possible values and their effects
   0 - - > Check for a new version of a page once per session (a session starts when the first application window opens and ends when the last application window closes).
   1 - - > Check for a new version every time a page is loaded.
   2 - - > Never check for a new version - always load the page from cache.
   3 - - > Check for a new version when the page is out of date. (Default)
   
3. Close window, exit and restart Firefox to enact the change.