I remember running a project to build a mortgage calculator/spreadsheet 'app' for a bank that had to work in 'Dynamic HTML' in Netscape 4 and IE. A never endi

I remember running a project to build a mortgage calculator/spreadsheet 'app' for a bank that had to work in 'Dynamic HTML' in Netscape 4 and IE. A never ending hell of compatibility, functionality and appearance differences that took many sleepless nights to fix.