As the Simpsons in CSS site is using some elements which aren't supported in old versions of Internet Explorer, visitors using those browsers will see that their Springfield heroes have been transported to Blockoland:
The site already has a "Best displayed in Chrome" indicator, and anyone who's still running on IE7 or IE8 is doing so at their own risk, but there could be value in providing some sort of redirect / alternate content for users with those browsers, rather than letting them see sub-optimal rendered content.
Depending on whose stats you believe, Internet Explorer 7 & 8 combined have about a 6% market share, so it's not an insignificant number of users who might be seeing this problem.
NB: Microsoft is officially dropping support for pre-IE9 browsers in January 2016, which is likely to lessen the number of visitors who are using such browsers.
As the Simpsons in CSS site is using some elements which aren't supported in old versions of Internet Explorer, visitors using those browsers will see that their Springfield heroes have been transported to Blockoland:
The site already has a "Best displayed in Chrome" indicator, and anyone who's still running on IE7 or IE8 is doing so at their own risk, but there could be value in providing some sort of redirect / alternate content for users with those browsers, rather than letting them see sub-optimal rendered content.
Depending on whose stats you believe, Internet Explorer 7 & 8 combined have about a 6% market share, so it's not an insignificant number of users who might be seeing this problem.
NB: Microsoft is officially dropping support for pre-IE9 browsers in January 2016, which is likely to lessen the number of visitors who are using such browsers.