title: Selenium: How to use x and y coordinate position
body: <p>I'm using the Selenium method <code>mouseMoveAt(java.lang.String locator,java.lang.String coordString)</code>, which requires a <code>coordString</code>.</p>
  
  <p>For example : <code>coordString - x,y position (10,20)</code>. If I use <code>10</code> for <code>x</code> and <code>20</code> for <code>y</code> coordinate, what does it mean?</p>