title: Use selenium to click and view more text
body: <p>I'm very new to Selenium.
  I'm crawling data from <a href="http://www.debate.org/opinions/is-global-climate-change-man-made" rel="nofollow">this page</a>. I need to scroll down the page and click on "Load More Arguments" to get more text. This is the location to click on. </p>
  
  <pre><code>&lt;a class="debate-more-btn" href="javascript:void(0);" onclick="loadMoreArguments('15F7E61D-89B8-443A-A21C-13FD5EAA6087');"&gt;
        Load More Arguments
  &lt;/a&gt;
  </code></pre>
  
  <p>I have tried this code but it does not work. Should I need more code to locate to that (I think the <a href="http://www.debate.org/opinions/is-global-climate-change-man-made" rel="nofollow">1</a> has already tell the location to click). Do you have any recommendation? Thank you in advance. </p>
  
  <pre><code>[1] btn_moreDebate = driver.find_elements_by_class_name("debate-more-btn")
  [2] btn.click()
  </code></pre>