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CSS3 (Flexbox (justify-content, align-items, flex-direction, order, align…
CSS3
Flexbox
justify-content
align-items
flex-direction
order
align-self
flex-wrap
flex-flow
align-content
Font
font-family
font-size
font-weight
font-variant
font-style
Align
text-align
line-height
Layer
position
clearfix
cái nào float thì nên đặt kích cỡ cho con