Chapter 2. Restrictions

Important

The properties not listed in the following two tables are not supported by XXE.

The following properties can be inherited whether explicitly (inherit keyword) or implicitly (inherited property).

For all properties except line-height where the specified number is inherited (which is the correct behavior), the inherited value is the actual value not the computed value.

Property

Value

Restrictions

backgroundcolor [ image [ repeat position? ]? ]? | inherit

Order is strictly color, image, repeat, position.

Note that property background-attachment is not supported at all. Property background-attachment is always assumed to be scroll.

background-color

color | transparent | inherit | normal[a]

-

background-imageurl | icon | none | inheritBuilt-in images such as icon(hatch1, #FFF0F0) are supported in addition to something like url(backgrounds/gradient23.png).
background-position0% 0% | top left | left top | length{1,2} | inheritPercentages other than 0% 0% and positions other than top left and left top are not supported.
background-repeatrepeat | repeat-x | repeat-y | no-repeat | inherit-

border

width [style color?]? | inherit

Order is strictly width, style, color.

border-color

side_value{1,4}

-

border-bottom-color

color | transparent | inherit

-

border-left-color

"

-

border-right-color

"

-

border-top-color

"

-

border-top-left-radius

length | percentage [length | percentage]? | inherit

-

Note

All the followingborder-radius properties are CSS3, and not CSS2, properties.

border-top-right-radius

"

-

border-bottom-left-radius

"

-

border-bottom-right-radius

"

-

border-radius

[length | percentage]{1,4} [ / [length | percentage]{1,4} ]?

-

border-style

none | dotted | dashed | solid | double | groove | ridge | inset | outset

No hidden

border-width

thin | thick | medium | length | inherit

-

color

color | inherit | normal[a]

-

counter-reset, counter-increment[ identifier integer? ]+ | none | inherit-

display

none | inline | block | list-item | marker | table | inline-table | table-row-group | table-header-group | table-footer-group | table-row | table-column-group | table-column | table-cell | table-caption | inline-block | tree | inherit

No run-in, compact.

font

[style weight?]? size family | inherit

Order is strictly style then weight.

font-family

[[name | generic] ,]* [name | generic] | inherit | normal[a]

The generic font families cursive and fantasy are not supported.

font-size

medium | small | large | x-small | x-large | xx-small | xx-large | smaller | larger | length | percentage | inherit

-

font-style

normal | italic | oblique | inherit

italic and oblique are aliases.

font-weight

normal | bold | inherit

No N00, bolder, lighter.

line-height

normal | number | inherit

No length, percentage.

list-style-imageURI | none | | inheritAlso supports icon(name).
list-style-positionoutside | inside | inherit-
list-style-typedecimal | lower-alpha | upper-alpha | lower-roman | upper-roman | none | inheritNo decimal-leading-zero, hebrew, armenian, lower-greek, etc.
list-styletype [ position [ image ]? ]? | inheritOrder is strictly type then position then image.

margin

side_value{1,4}

-

margin-bottom

length | auto | inherit

No percentage.

margin-left

"

-

margin-right

"

-

margin-top

"

-

padding

side_value{1,4}

-

padding-bottom

length | inherit

No percentage.

padding-left

"

-

padding-right

"

-

padding-top

"

-

text-align

left | right | center | inherit

No justify.

text-decoration

none | underline | overline | line-through | inherit

No blink.

text-indent

length | inherit

No percentage.

vertical-align

baseline | middle | sub | super | text-top | top | text-bottom | bottom | inherit

No length, percentage.

white-space

normal | pre | nowrap | inherit

-

[a] "normal" is a non-standard value meaning: same value as the one specified in the user's preferences.

The following properties cannot be inherited whether explicitly (inherit keyword) or implicitly (inherited property).

Property

Value

Restrictions

border-spacing

length length?

-

caption-sidetop | bottomleft, right, inherit are not supported.

content

string | uri | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote | counter(name) | counter(name, style) | counters(name, separ) | counters(name, separ,     style) | disc | circle | square | see extensions

No-open-quote, no-close-quote are ignored.

Counter styles are limited to: decimal, lower-alpha, lower-latin, upper-alpha, upper-latin, lower-roman, upper-roman.

height

length | auto

No percentage. This property is currently ignored.

marker-offset

length | auto | fill

No percentage.

width

length | auto

No percentage. This property is currently only useful to specify the minimum width of a table cell.

Other restrictions: