title: Which is better to use in CSS, percentage or pixels?
body: <p>I am not a CSS expert and I want to make a design that will look good in all browsers and resolutions. I noticed that some websites make their design (<code>width</code>, <code>height</code>, <code>margin</code>, <code>padding</code>) with percentage, not pixels, and I am doing all my design with percentage too. Does this approach have any problems?</p>
  
  <p>Please advise me.</p>