Use different website browsers for cross-compatibility to see how a website will display differently in each. Have a look in my resources section at Different Website Browsers for Cross-Compatibility for options to download multiple browsers whether you use a Mac or a PC.

By using different website browsers surfing the internet you may find that certain features give you a more positive experience in certain website browsers.

Webdesigners utilize multiple website browsers to find out whether a site is cross-compatible, meaning it displays properly in each website browser. When your website displays properly in different website browsers, your visitor gets to see your site in the way you intended:

Downloadable website browsers for PC:
Internet Explorer 8
Google Chrome
Opera
Firefox
Safari

Visit Different Website Browsers for Cross-Compatibility for a list of alternate downloadable browsers including those for the Mac.

Have a look at these other Resources for Web Design:
Website Design Tools
Web Browser Add Ons
Useful Web Design Resources
Website Design Webmaster Tools
Other Free Useful Resources Online