Gloss

Glamorous CSS preprocessor for Dart

Syntax

Gloss is the dynamic stylesheet language. It supports both regular CSS syntax and nested syntax. You can also create variables and mixins.

Nesting

You can use & to override the default selectors nesting order

.a {
  .b & {
    background: red
  }
  .c {
    color: white
  }
}

will become

.b .a {
  background: #ff0000;
}
.a .c {
  color: #ffffff;
}

Indentation

You can use curly braces or indentation for blocks

.a
  .b
    background: white

Variables

To create a variable you simply assign it with = sign

button-color = overlay(#401010, #303030)
.a
  color: button-color

produces

.a {
  color: #180606;
}

Mixins

Mixins can be used as a block of properties.

background-gradient(start, end)
  background: -webkit-linear-gradient(start, end);
  background: linear-gradient(start, end);

.a
	background-gradient: red, blue

output:

.a {
  background: -webkit-linear-gradient(#ff0000, #0000ff);
  background: linear-gradient(#ff0000, #0000ff);
}

Math

You can use some arithmetics in your styles. + - * operators are available. / operator is reserved for font declaration, so it doesn't divide, use % instead.

div
  width: 100px + 10%

will produce

div {
  width: 110px;
}

###BIF There are several built-in functions available for color blending: multiply average substract difference negation screen exclusion overlay softlight hardlight colordodge colorburn lineardodge linearburn linearlight pinlight hardmix reflect glow phoenix

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

lvivski/gloss