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@ptomato
Created August 12, 2015 04:27
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GTK CSS properties

See https://git.gnome.org/browse/gtk+/tree/gtk/gtkcssstylepropertyimpl.c?h=gtk-3-8#n878 and https://git.gnome.org/browse/gtk+/tree/gtk/gtkcssstyleproperty.c?h=gtk-3-8#n272

Ani = Property can be animated Inh = Property inherits from parent widget

Property name Type Default Ani Inh Notes
animation Sets all animation-* properties except animation-play-state; specify iteration count first, then duration, then delay
animation-delay array(time) 0 N N
animation-direction array(direction) normal N N
animation-duration array(time) 0 N N
animation-fill-mode array(fill) none N N
animation-iteration-count array(iteration count) 1 N N
animation-name array(string) none N N
animation-play-state play state running N N
animation-timing-function array(ease) ease N N
background Sets all background-* properties; separate size and position with "/"; clip and origin are set to the same value
background-clip array(area) border-box N N
background-color color black Y N
background-image array(image) none Y N
background-origin array(area) padding-box N N
background-position array(position) 0 0 Y N
background-repeat array(repeat) repeat repeat N N
background-size array(background size) auto auto Y N
border Sets color, style, and width of all four sides at once; clears all border-image-* properties
border-bottom Sets color, style, and width in any order
border-left ditto
border-right ditto
border-top ditto
border-color Sets all border-*-color properties
border-bottom-color color currentColor Y N
border-left-color color currentColor Y N
border-right-color color currentColor Y N
border-top-color color currentColor Y N
border-style Sets all border-*-style properties
border-bottom-style border style none N N
border-left-style border style none N N
border-right-style border style none N N
border-top-style border style none N N
border-width Sets all border-*-width properties
border-bottom-width length 0 Y N
border-left-width length 0 Y N
border-right-width length 0 Y N
border-top-width length 0 Y N
border-radius Sets all border-*-radius properties (x-values ("/" y-values)?)
border-bottom-left-radius corner 0 0 Y N
border-bottom-right-radius corner 0 0 Y N
border-top-left-radius corner 0 0 Y N
border-top-right-radius corner 0 0 Y N
border-image Sets all border-image-* properties; separate slice and width by "/"
border-image-repeat repeat stretch stretch N N
border-image-slice border 100% 100% 100% 100% N N "auto" not allowed
border-image-source image none Y N
border-image-width border 1 1 1 1 N N "fill" not allowed
box-shadow shadow none Y N Currently, only inset box shadows work
color color white Y Y
engine string none? N N Theming engine
font Parsed by pango_font_description_from_string(); sets all font-* properties
font-family array "Sans" N Y
font-size length medium Y Y
font-style style normal N Y
font-variant variant normal N Y
font-weight weight normal N Y
gtk-key-bindings array(string) none N N
icon-shadow shadow none Y Y
margin Sets all margin-* properties
margin-bottom length 0 Y N
margin-left length 0 Y N
margin-right length 0 Y N
margin-top length 0 Y N
opacity number 1 Y N Note that it is applied cumulatively to the opacity set by gtk_widget_set_opacity()! Also, the "animatable" is a lie.
outline-color color currentColor N N
outline-style border style none N N
outline-offset length 0 N N
outline-width length 0 Y N
padding Sets all padding-* properties
padding-bottom length 0 Y N
padding-left length 0 Y N
padding-right length 0 Y N
padding-top length 0 Y N
text-shadow shadow none Y Y
transition Sets all transition-* properties; specify duration before delay
transition-delay array(time) 0 N N
transition-duration array(time) 0 N N
transition-property array(string) "all" N N
transition-timing-function array(ease) ease N N

For the shorthand properties that set values on four sides at once, you can give from one to four values. The order is top, right, bottom, left. If right or bottom are not given, they are equal to top. If left is not given, it is equal to right (and therefore top if right is not given.)

Syntax of types of values

area:
  "border-box" | "padding-box" | "content-box"

array:
  value ("," value)*

background repeat:
  "none" | "repeat-x" | "repeat-y" | ("no-repeat" | "repeat" | "round" | "space"){1, 2}

background size:
  "cover" | "contain" | ("auto" | positive length or percentage){2}

border:
  "fill"? ("auto" | number){1,4} "fill"?

border repeat:
  ("stretch" | "repeat" | "round" | "space"){1, 2} | "none"

border style:
  "none" | "solid" | "inset" | "outset" | "hidden" | "dotted" | "dashed" | "double" | "groove" | "ridge"

color:
  "currentColor" | "transparent" | "@"defined-color | color-function | "#"(rgb | rrggbb) | named-color
color-function:
  rgba(0-255 or percentage, 0-255 or percentage, 0-255 or percentage, double)
  | rgb(0-255 or percentage, 0-255 or percentage, 0-255 or percentage)
  | lighter(color) => 1.3 * color
  | darker(color) => 0.7 * color
  | shade(color, double) => double * color
  | alpha(color, double)
  | mix(color, color, double)
  | -gtk-win32-color(name, int)
named-color:
  name understood by gdk_rgba_parse() (http://en.wikipedia.org/wiki/X11_color_names)

corner:
  (positive length or percentage){1,2}
  // refers to x and y; if only x given, then y = x

direction:
  "normal" | "reverse" | "alternate" | "alternate-reverse"

ease:
  "linear" | "ease-in-out" | "ease-in" | "ease-out" | "ease" | "step-start" | "step-end"
  | "steps" "(" unsigned-int ("," ("start" | "end"))? ")"
  | "cubic-bezier" "(" double 0-1 "," double 0-1 "," double 0-1 "," double 0-1 ")"

engine:
  "none" | string

fill:
  "none" | "forwards" | "backwards" | "both"

font size:
  "smaller" | "larger" | "xx-small" | "x-small" | "small" | "medium" | "large" | "x-large" | "xx-large"

font style:
  "normal" | "oblique" | "italic"

font variant:
  "normal" | "small-caps"

font weight:
  "100" | "200" | "300" | "normal" | "400" | "500" | "600" | "bold" | "700" | "800" | "900"
  // normal = 400, bold = 700

image:
  "none"
  | "url(" string ")"
  | "-gtk-gradient(" ("radial" ("," gradient-x gradient-y "," double){2} | "linear" ("," gradient-x gradient-y){2}) ("," ("from" "(" | "to" "(" | "color-stop" "(" double ",") string ")")+ ")"
  | "-gtk-win32-theme-part(" string "," int int ("," ("over" "(" int int "," double | "margins" "(" int{1,4} ) ")")+ ")"
  | ("linear-gradient(" | "repeating-linear-gradient(") (("to" any order(("top" | "bottom"), ("left" | "right")) | angle) ",")? (color (length | percentage)? ("," (color (length | percentage)?)*)? ")"
  | "cross-fade(" percentage? image ("," image)? ")"
  // if percentage is not given, then 50%. in future, should be able to specify colors as well
gradient-x:
  "left" | "right" | "center" | double
gradient-y:
  "top" | "bottom" | "center" | double

iteration count:
  "infinite" | number

play state:
  "running" | "paused"

position:
  ("left" | "right" | "top" | "bottom" | "center" | length | percentage){1, 2}
  // in such a combination that one horizontal and one vertical value are specified

shadows:
  "none" | array("inset"? number number positive-number? number? "inset"? color)
  // numbers: hoffset voffset radius=0.0 spread=0.0
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ghost commented Jun 15, 2022

Thanks legend

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