CSS REFERENCE GUIDE

the box model

width
height
padding
margin
background-color
background-image
background-repeat
background-position
background-size
background-attachment
border
border-radius

typography

color
font-family
font-size
font-style
font-weight
line-height
letter-spacing
text-align
text-decoration
text-transform
text-shadow

states (pseudo-classes)

:hover
:active
:link
:visited

box flow

display
justify-content
flex-direction

position

static
relative
fixed
float

animation

transition
@keyframes
animation