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# Compass
## http://compass-style.org

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* Stylesheet framework
* Considered sass standard library
* Standalone application
* Has the ability to have application integrations (rails, django, etc.)

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## Currently the only application integration supported by the core team is rails

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## Features

* Sprites
* CSS3
* Layout tools
* And much more

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# Sprites!

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* Fewer http requests.
* You don't have a bunch of individual images to manage.
* Customizable
* ITS EASY!

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# This EASY!

``` scss

@import "my-icons/*.png";
@include all-my-icons-sprites;

```

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## BAM!
``` scss
.my-icons-sprite,
.my-icons-delete,
.my-icons-edit,
.my-icons-new,
.my-icons-save   { 
  background: url('/images/my-icons-s34fe0604ab.png') no-repeat; 
}

.my-icons-delete { background-position: 0 0; }
.my-icons-edit   { background-position: 0 -32px; }
.my-icons-new    { background-position: 0 -64px; }
.my-icons-save   { background-position: 0 -96px; }
```

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# Sprite Layouts

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## Vertical (default)
<img src='/assets/vert.png' >

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## Horizontal
<img src='/assets/horizontal.png' >

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## Diagonal
<img src='/assets/diagonal.png' >

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## Smart
<img src='/assets/smart.png' >

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# Magic Selectors

* my-buttons/glossy.png
* my-buttons/glossy_hover.png
* my-buttons/glossy_active.png
* my-buttons/glossy_target.png

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# Example

``` scss
@import "my-buttons/*.png";

a {
  @include my-buttons-sprite(glossy)
}
```

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# BAM!

``` scss
.my-buttons-sprite, a {
  background: url('/my-buttons-sedfef809e2.png') no-repeat;
}

a {
  background-position: 0 0;
}
a:hover, a.glossy-hover {
  background-position: 0 -40px;
}
a:target, a.glossy-target {
  background-position: 0 -60px;
}
a:active, a.glossy-active {
  background-position: 0 -20;
}
```

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# Beware of your file size!

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# We support most CSS3 properties with vendor prefix's.

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* Gradients
* Shadows
* Box model
* Transitions
* Much more

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# Layout tools

* Grid
* Vertical rhythm
* And more!

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<div class='standard-grid' ></div>

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``` scss
.grid {
  @include grid-background($total, $column, $gutter, $baseline, 
                           $offset, $column-color, $gutter-color, 
                           $baseline-color, $force-fluid)
}
```


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# Vertical rhythm

## The spacing and arrangement of text as the reader descends the page.

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## "Just as regular use of time provides rhythm in music, so regular use of space provides rhythm in typography, and without rhythm the listener, or the reader, becomes disorientated and lost." - 24ways.org

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<div class='grid' ></div>

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<img src='/assets/rhythm_layout.png' width="700px">

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* Height : rhythms
* Width  : columns

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``` scss
$release-content-height            : rhythm(2);

$section-side-width                : column-width(4);

$primary-image-caption-line-height : floor($base-line-height / 2); 

$group-image-height                : rhythm(6);

.contents .show {
  h1 {
    @include header(3);
    @include padding-leader;
    @include trailer;
    color  : $primary-accent-color;
  }
// etc ...
```

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<img src='/assets/vert_rhythm_bad.jpg' >

http://coding.smashingmagazine.com/2009/04/03/8-simple-ways-to-improve-typography-in-your-designs/

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# Extensions

* fancy-buttons
* sassy-buttons
* susy
* blueprint
* twitter-bootstrap
* etc...

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<img src='/assets/fancy-buttons.png' >