title: Estimated time to make website work in safari/firefox
body: <p>I have a website that was originally designed for enclosed intranet use under IE 7/8 and is now needing to be running on the web, which means making adjustments for firefox, safari and chrome. </p>
  
  <p>The problem is that I'm not too great at time estimating and am looking for advice on what to expect when making the site cross browser compatible. Firefox dev tools is telling me is that there's several CSS tags such as * overflow-x and filter that are not supported. </p>
  
  <p>How differently do safari and chrome render sites from IE and firefox?</p>
  
  <p>Its an HTML, CSS, Javascript, and ASP.net website.</p>
  
  <p>Any insight you have to offer will be appreciated.
  Thank you.</p>