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NRTOFHJRTEHKDFJFGJTRIUEIOreyeturfgggwdshbdgfhsVi du the u trongHTML.jagđágdjVi du the itrongHTML.sadgcfbcgưebgjhxdhbdhjhdvhdvhdxdxrvtrtuirhgrguionodgcrgrdgrdgnguvgusgurhugrhuigheruighvuierhvgeruohviougerhngosrheoigherogyoe5yt4yn5tuhne48tyn498tgw8eo4nt9wtnuwrenhc9renhgurehngohsrioungeeinwhrecojkgvdkruieokdfg,mfjkiotr WIOUTE
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DO SNRBJLNLDNTBHNVSDLFG 
function testFunction( strText){
alert (strText)
}

Doan van nay duoccan chinhtrai

Doan van nay duoccan chinhgiua

Doan van nay duoccan chinhphai

Vi du the itrongHTML.

Vi du the strike trongHTML.

Vi du the sup trongHTML.

Vi du the sub trongHTML.

Toithichhoc HTML CSS

Tusauday sudung the small trongHTML.

Tusauday sudung the big trongHTML.