We try to keep as close to standard web styles as possible - but not every property is implemented. We'll use this page to highlight any differences.

Anything marked in bold* may behave differently to how you'd expect on web.

Common Types

Name Description Examples
Float A standard float flex-grow: 2.5;
String A string with or without quotes font-family: Poppins;,content: "Back to Menu";
int A standard int font-weight: 600;
Color Can have alpha color: #fff;,color: #ffffffaa;,color: rgba(red, 0.5);
Length A dimension, pixel or relative. left: 10px;,left: 10%;,left: 10em;,left: 10vw;,mask-angle: 10deg;

Custom Style Properties

Name Parameters Examples / Notes
aspect-ratio Float, Float (Optional) aspect-ratio: 1;,aspect-ratio: 16/9;
background-image-tint Color Multiplies the background-image by this Color. Not a replacement for filter or backdrop-filter.
border-image-tint Color Multiplies the border-image by this Color.
mask-scope default / filter default will apply the mask normally, filter will use the mask to blend between unfiltered and filtered.
sound-in String The name of the sound to play when this style is applied to an element. This is useful to put on a :hover or :active style to play a sound on hover/click
sound-out String The name of a sound to play when this style is removed from an element.
text-stroke Length, Color This will put an outline
text-stroke-color Color
text-stroke-width Length

Supported Style Properties

Name Parameters Examples / Notes
align-content autoflex-endflex-startcenterstretchspace-betweenspace-aroundbaseline
align-items Same as align-content
align-self Same as align-content
animation Fills in the properties below
animation-delay Float
animation-direction normal (default) reverse alternate alternate-reverse
animation-duration Float
animation-fill-mode none forwardsbackwardsboth
animation-iteration-count int / infinite
animation-name String
animation-play-state runningpaused
animation-timing-function linear (default) ease ease-in ease-out ease-in-out
backdrop-filter blur(Length) <br>saturate(Length) <br>contrast(Length) <br>brightness(Length) <br>grayscale(Length) <br>sepia(Length) <br>hue-rotate(Length) <br>invert(Length) <br>border-wrap(Length, Color) backdrop-filter: blur(10px) saturate(80%);
backdrop-filter-blur Length
backdrop-filter-brightness Length
backdrop-filter-contrast Length
backdrop-filter-hue-rotate Length
backdrop-filter-invert Length
backdrop-filter-saturate Length
backdrop-filter-sepia Length
background Fills in the properties below
background-angle Length
background-blend-mode normal lighten multiply
background-color Color
background-image url(string) <br>linear-gradient(Color, Color) <br>radial-gradient(Color, Color) <br>conic-gradient(Color, Color)
background-position Length, Length (optional) background-position: 10px``background-position: 10px 15px
background-position-x Length
background-position-y Length
background-repeat no-repeat repeat-x repeat-y repeat
background-size Length, Length (optional) background-size: 10px background-size: 10px 15px
background-size-x Length
background-size-y Length
border border-width, border-style, border-color border: 10px solid black;
border-bottom Same as border
border-bottom-color Color
border-bottom-left-radius Length
border-bottom-right-radius Length
border-bottom-width Length
border-color Color
border-image Same as background-image
border-image-tint Color
border-image-width-bottom Length
border-image-width-left Length
border-image-width-right Length
border-image-width-top Length
border-left Same as border
border-left-color Color
border-left-width Length
border-radius Length border-radius: 8px;<br>border-radius: 8px 0px 8px 8px;
border-right Same as border
border-right-color Color
border-right-width Length
border-top Same as border
border-top-color Color
border-top-left-radius Length
border-top-right-radius Length
border-top-width Length
border-width Length
bottom Length
box-shadow Length,<br>Length (optional),<br>Length (blur, optional),<br>Length (spread, optional),<br>Color box-shadow: 2px 2px 4px black;
color Color /<br>linear-gradient(Color, Color) /<br>radial-gradient(Color, Color) /<br>conic-gradient(Color, Color)
column-gap Length
content string Sets the text of a Label.<br>eg. content: "Loading…";
cursor none / pointer / progress / wait / crosshair / text / move / not-allowed / any custom cursors
display* flex (default) / none Everything is flex by default
filter Same as backdrop-filter
filter-blur Length
filter-border-color Color
filter-border-width Length
filter-brightness Length
filter-contrast Length
filter-drop-shadow Same as box-shadow
filter-hue-rotate Length
filter-invert Length
filter-saturate Length
filter-sepia Length
filter-tint Length
flex-basis Length
flex-direction row (default) / row-reverse / column / column-reverse
flex-grow Float
flex-shrink Float
flex-wrap nowrap (Default) / wrap / wrap-reverse
font-color Color
font-family* String Specify a single font, based on the name of the font itself, not the filename.<br>eg. font-family: Comic Sans MS;
font-size Length
font-smooth auto / always / never never is good for pixel fonts
font-style normal (default) / italic
font-weight normal (default) / bold / light / bolder / lighter / black / int font-weight: bold;,font-weight: 300;
gap Length, Length (optional) Shorthand for row-gap and column-gap, specified the size of gutters.
height Length
image-rendering auto (default) / anisotropic / bilinear / trilinear / point / pixelated / nearest-neighbour
justify-content Same as align-content
left Length
letter-spacing Length / normal
line-height Length
margin Fills in the properties below
margin-bottom Length
margin-left Length
margin-right Length
margin-top Length
mask Shorthand for other mask properties
mask-angle Length
mask-image Same as background-image
mask-mode luminance / alpha
mask-position Length, Length (optional)
mask-position-x Length
mask-position-y Length
mask-repeat same as background-repeat
mask-size Length, Length (optional)
mask-size-x Length
mask-size-y Length
max-height Length
max-width Length
min-height Length
min-width Length
mix-blend-mode normal / lighten / multiply
opacity Float
order int
overflow visible (default) / hidden / scroll
overflow-x Same as overflow
overflow-y Same as overflow
padding Fills in the properties below
padding-bottom Length
padding-left Length
padding-right Length
padding-top Length
perspective-origin Length, Length (optional)
perspective-origin-x Length
perspective-origin-y Length
pointer-events none (default) / all / auto
position* static (default) / relative / absolute See how it works: https://yogalayout.com/docs/absolute-relative-layout/
right Length
row-gap Length
text-align left (default) / center / right
text-background-angle Length
text-decoration Color / Length / LineStyle, Line Properties can be in any order and you can have multiple lines.
text-decoration-color Color
text-decoration-line underline / line-through / overline Multiple properties can be set. eg. text-decoration-line: overline underline;
text-decoration-line-through-offset Length
text-decoration-overline-offset Length
text-decoration-skip-ink all / none Decides whether the line decoration should draw above glyphs or not
text-decoration-thickness Length
text-decoration-underline-offset Length
text-overflow clip / ellipsis
text-shadow Same as box-shadow
text-transform none (default) / capitalize / lowercase / uppercase
top Length
transform Fills in the properties below
transform-origin Length, Length, Length (optional)
transform-origin-x Length
transform-origin-y Length
transition Fills in the properties below transition: all 0.1s ease;,transition: opacity 0.1s transform 0.2s ease-out;
transition-delay Float
transition-duration Float
transition-property String
transition-timing-function linear (default) / ease / ease-in-out / ease-out / ease-in
white-space normal / nowrap / pre Use pre to format tabs and newlines.
width Length
word-break normal / break-all
word-spacing Length
z-index int

Custom Pseudo-Classes

These are some s&box-specific pseudo-classes which are useful for applying transitions when an element is created or deleted.

  • :intro is removed when the element is created, things will transition away from this
  • :outro is added when Panel.Delete() is called. The Panel waits for all transitions to finish before actually deleting itself.
MyPanel {
	transition: all 2s ease-out;
	transform: scale( 1 );

	// When the element is created make it expand from nothing.
	&:intro {
		transform: scale( 0 );
	}

	// When the element is deleted make it double in size before being deleted.
	&:outro {
		transform: scale( 2 );
	}
}





Created 24 Sep 2024
Updated 17 Jan 2025