difference between html4 and html5
The list is quite long. Google "New HTML5 tags". There are also some old HTML tags which have been removed and are not supported in HTML5.
Html 4 - Its for old browsers and for Symbian devices that does not support online videos and audios! Html 5 - for browsers like chrome, fire Fox and so on. You can view videos and audios but you cannot code with html 5 to get pictures! only html 4 and html can do that!