CSS

Box model

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border-width:
border-top-width:
border-bottom-width:
border-left-width: 
border-right-width:

box-sizing: content-box/ border-box

line-width: normal/1.6/30px/0.8em

margin
margin-top
margin-bottom: 2px/3em/10%/auto
margin-left
margin-right

height:
max-height: none/2000px
max-width:
min-height: 0/200px
min-width:

padding
padding-top:
padding-bottom:
padding-left:
padding-right:

width: auto/240px/50%



overflow: auto/hidden/visible
background-cli: border-box/padding-box/content-box
display: block/inline/inline-block/positioned/table/flex

Flexbox

Before the Flexbox Layout module, there were four layout modes:

flexbox
align-content: stretch/flex-start/flex-end/center/space-between/space-around/
align-items: flex-start/flex-end/center/baseline/stretch
align-self: auto/flex-start/flex-end/center/baseline/stretch
flex-basis: auto/80px/
flex-direction: row/row-reverse/column/column-reverse
flex-flow
flex-grow: 0/1
flex-shrink: 0/1
flex-wrap: nowrap/wrap/wrap-reverse
justify-conent: flex-start/flex-end/center/space-between/space-around
order: 0/1/-1/9

Grid