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38 lines
1.5 KiB
Markdown
38 lines
1.5 KiB
Markdown
---
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title: Values
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introduction: >
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Sass supports a number of value types, most of which come straight from CSS.
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Every [expression](/documentation/syntax/structure#expressions) produces a value,
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[variables](/documentation/variables) hold values. Most value types come straight from CSS:
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overview: true
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---
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- [Numbers](/documentation/values/numbers), which may or may not have units, like `12` or
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`100px`.
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- [Strings](/documentation/values/strings), which may or may not have quotes, like
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`"Helvetica Neue"` or `bold`.
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- [Colors](/documentation/values/colors), which can be referred to by their hex representation
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or by name, like `#c6538c` or `blue`, or returned from functions, like
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`rgb(107, 113, 127)` or `hsl(210, 100%, 20%)`.
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- [Lists of values](/documentation/values/lists), which may be separated by spaces or commas
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and which may be enclosed in square brackets or no brackets at all, like
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`1.5em 1em 0 2em`, `Helvetica, Arial, sans-serif`, or `[col1-start]`.
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A few more are specific to Sass:
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- The [boolean](/documentation/values/booleans) values `true` and `false`.
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- The singleton [`null`](/documentation/values/null) value.
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- [Maps](/documentation/values/maps) that associate values with keys, like
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`("background": red, "foreground": pink)`.
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- [Function references](/documentation/values/functions) returned by [`get-function()`][] and
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called with [`call()`][].
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[`get-function()`]: /documentation/modules/meta#get-function
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[`call()`]: /documentation/modules/meta#call
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