Style properties

Properties can hold different kind of values:

• Length is a number followed by a unit such as 40px.
• Reserved keywords such as auto, expand, fit and repeat.
• A dep declared by the dependency description language such as $btn.img.

Here is the full list of valid properties:

Property name	Accepted values	Meaning
left	Length
right	Length
top	Length
bottom	Length
height	Length
width	Length, auto, expand
margin	Length, auto, expand
margin-left	Length, auto, expand
margin-right	Length, auto, expand
margin-top	Length, auto
margin-bottom	Length, auto
padding	Length
padding-left	Length
padding-right	Length
padding-top	Length
padding-bottom	Length
border	Length
border-left	Length
border-right	Length
border-top	Length
border-bottom	Length
layout	TBD
background-image	dep only
background-image-rule	fit or repeat