title: What is the best way to fill the screen without jQuery
body: <p>I have two divs side by side. 
  Div1 width is 200px
  and Div2 should fill the screen. 
  To do this, I use jQuery and detect the screen with and then substuct 200 from it. 
  But if I use this way, jQuery slows down the browser. 
  So I'm searching a better way rather than using jQuery. 
  What is the best way to do this?</p>
  
  <p>Update :<br/>
  I forgot to write that float did not fixed my solution. </p>
  
  <p>Thank you I'm going to check the answers. </p>