nice.

.gitignore

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+.ds_store
+node_modules
+.sass-cache

LICENSE.md

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+# Susy
+Source: https://github.com/oddbird/susy
+
+Copyright (c) 2015, Miriam Eric Suzanne
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of the author nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+# Compass
+Source: https://github.com/Compass/compass
+
+Copyright (c) 2009-2014 Christopher M. Eppstein
+
+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.
+No attribution is required by products that make use of this 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.
+
+Except as contained in this notice, the name(s) of the above copyright
+holders shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in this Software without prior written authorization.
+
+Contributors to this project agree to grant all rights to the copyright
+holder of the primary product. Attribution is maintained in the source
+control history of the product.
+

sass/_susy.scss

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+// Compass
+// Note: Maintain compatibility with both compass and libsass (via compass-mixins)
+@import "compass";
+
+// Compass units polyfill for libsass
+@import "susy/units";
+
+// Partials
+@import "susy/settings";
+@import "susy/functions";
+@import "susy/grid";
+@import "susy/isolation";
+@import "susy/padding";
+@import "susy/margin";
+@import "susy/media";
+@import "susy/background";

sass/susy/_background.scss

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+// ---------------------------------------------------------------------------
+// Susy Grid Background
+//
+// A wrapper for the compass "column-grid-background" mixin
+// Uses all your settings to create a grid background for a container element.
+// Note: Sub-pixel rounding can lead to several pixels of variation between browsers.
+@mixin susy-grid-background(){
+  @include column-grid-background($total-columns, column(), gutter(), 0);
+  @include background-origin(content-box);
+  @include background-clip(content-box);
+}