Ky tu dac biet html
(Viet theo dang &)

♣ - clubs
♠ - spades
→ - rarr
♥ - hearts
‰ - permil
™ - trade
↓ - darr
£ - pound
α - alpha
β - beta
¡ - iexcl
ø - oslash
ó - oacute
ò - ograve
ç - ccedil
þ - thorn
× - times
§ - sect
µ - micro
½ - frac12