README.md

CSS properties that trigger layout

1. border, border-collapse, border-width

• box-sizing
• float
• font, font-family, font-size, font-weight, line-height
• height
• letter-spacing
• margin
• max-height
• max-width
• min-height
• min-width
• overflow, overflow-x, overflow-y
• padding
• position, position: relative + ( bottom, left, right, top )
• text-align
• vertical-align
• white-space
• width
• word-break
• word-spacing
• word-wrap
• zoom

And possibly:

1. transform

• flex

transform doesn't affect sizing (though it does affect scroll area). — @tabatkins