title: What is WebKit and how is it related to CSS?
body: <p>More recently, I have been seeing questions with the tag "webkit". Such questions usually tend to be web-based questions relating to CSS, jQuery, layouts, cross-browers compatibility issues, etc...</p>
  
  <p>So what is this "webkit" and how does it relate to CSS? I have also noticed a lot of <code>-webkit-...</code> properties in the source code for various websites. Are these two related?</p>
  
  <h2>Update</h2>
  
  <p>So from the answers so far... WebKit is a HTML/CSS web browser rendering engine for Safari/Chrome. Are there such engines for IE/Opera/Firefox and what are the differences, pros and cons of using one over the other? Can I use WebKit features in Firefox for example?</p>
  
  <p>The ultimate question... Is WebKit supported by IE? </p>
  
  <h2>Update 2</h2>
  
  <p>All of the major browsers use different rendering engines. I guess this is a big reason why there are so many cross-browser compatibility issues! </p>
  
  <p>So, is there some kind of project or movement to a standard rendering engine that ALL browsers will use? Will HTML5 bring an end to the cross-browser compatibility issues?</p>