Creating a native IOS application for your website will be a challenging task if you’re not familiar with Objective C. These are the few tweaks which will make your web application look-alike the native IOS application with existing HTML and CSS knowledge.
Every Web Designer hates Internet explorer, I too hate Internet explorer for many reasons (especially IE6). HTML 5 and CSS3 are the most powerful techniques of creating a good design but IE can’t handle them. Few tricks can do some work to give a good look in Internet explorer. The hacks like creating rounded corners, embedding HTML5, text and box shadow, Opacity are been given here.