title: CSS PX to Percentage
body: <p>Ok so this question seems to have been asked a fair few times but still haven't managed to get the plain simple answer I'm after from looking at others questions so will ask this my own way. I'm wanting to create a site with a container in CSS as follows:</p>
  
  <pre><code>.container {
       height: 100%;
       margin: 0 auto;
       width: 980px;
  }
  </code></pre>
  
  <p>However for the width I'm wanting to use a percentage but for the life of me I cannot find one simple answer or even a site that converts PX to % or even just to get an answer to what percentage is used in place of 980px or 960px ? Is it 62.5% or 70% ?</p>
  
  <p>Could someone please help me out with this and answer this simple question or at least give me a site that I can look at with conversions and just before anyone answers with PX to EM site, I've already looked at it and it's not clear as that site is more for font sizes.</p>
  
  <p>Thank you to anyone who can answer this!</p>