title: Vertical Scroll down and scroll up in Selenium WebDriver with java
body: <p>Can anybody please help me out to automate <strong>scroll down functionality</strong> with <strong>WebDriver</strong> using <strong>Java</strong>?</p>
  
  <p>In my case, For yahoo mail <code>"Sign In"</code> is getting displayed (<strong>visible</strong>) once I scroll down the mouse vertically.</p>