Compatible with any browser 
This means the web pages are ok for both Firefox, Opera, Chrome, Safari, Mozilla and Internet Explorer, recent and old versions; both on MSWindows, Unix, Linux, Mac and set top box. 
To be "compatible with any browser" is a good thing, but some Web programs are not (some programs do like then Microsoft browser only... who knows why...?). 
EasyWebEditor, 1SITE and HyperPublish are "compatible with any browser".