title: UIWebView text improperly rendered at first after changing font family
body: <p>I'm trying to change font of the text shown in a UIWebView using javascript. I'm doing this by  calling a javascript function which adds a css rule to span and paragraph elements.</p>
  
  <p>Problem is that when I do this for the first time after application is opened, at first webview is rendered with the new font, but after near 2-3 seconds, location of words are slided a little bit, such like if I narrowed the line spacing of the text.</p>
  
  <p>After first load, all other font change requests work properly, spacing and positions not change after text is visible. </p>
  
  <p>What could be the reason behind this strange behavior? What can i do to solve this?</p>
  
  <p>I tried adding css rule directly into html code, but it does not change the result.</p>
  
  <p>Thanks</p>