reflow

• layout,paint를 모두 재실행

종류

position
width
height
top
right
bottom
margin
padding
border
border-width
display
float
font-size
line-height
overflow

repaint

• paint를 재실행

종류

background
background-image
background-size
border-redius
border-size
color
line-style
outline
outline-color
outline-style
outline-width
text-decoration

reflow, repaint 생략

종류

transform
opacity