... clear có th thit k website vi nhng b cc phc tp, s i thit k am hi ng tn v hai khái nim float và clear. Float s giúp chúng ta chia website thành nhng khi ... <form action="demo_keygen.asp" method="get"> Username: <input type="text" name="usr_name"> Encryption: <keygen name="security"> ... Wheat rgb(245,222,179) #F5DEB3 #F5DEB3 White rgb(255,255,255) #FFFFFF #FFFFFF WhiteSmoke rgb(245,245,245) #F5F5F5 #F5F5F5 Yellow rgb(255,255,0) #FFFF00 #FFFF00 YellowGreen...