--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/assets/stylesheets/bootstrap/mixins/_grid.scss	Thu Jun 15 12:17:09 2017 +0200
@@ -0,0 +1,122 @@
+// Grid system
+//
+// Generate semantic grid columns with these mixins.
+
+// Centered container element
+@mixin container-fixed($gutter: $grid-gutter-width) {
+  margin-right: auto;
+  margin-left: auto;
+  padding-left:  ($gutter / 2);
+  padding-right: ($gutter / 2);
+  @include clearfix;
+}
+
+// Creates a wrapper for a series of columns
+@mixin make-row($gutter: $grid-gutter-width) {
+  margin-left:  ceil(($gutter / -2));
+  margin-right: floor(($gutter / -2));
+  @include clearfix;
+}
+
+// Generate the extra small columns
+@mixin make-xs-column($columns, $gutter: $grid-gutter-width) {
+  position: relative;
+  float: left;
+  width: percentage(($columns / $grid-columns));
+  min-height: 1px;
+  padding-left:  ($gutter / 2);
+  padding-right: ($gutter / 2);
+}
+@mixin make-xs-column-offset($columns) {
+  margin-left: percentage(($columns / $grid-columns));
+}
+@mixin make-xs-column-push($columns) {
+  left: percentage(($columns / $grid-columns));
+}
+@mixin make-xs-column-pull($columns) {
+  right: percentage(($columns / $grid-columns));
+}
+
+// Generate the small columns
+@mixin make-sm-column($columns, $gutter: $grid-gutter-width) {
+  position: relative;
+  min-height: 1px;
+  padding-left:  ($gutter / 2);
+  padding-right: ($gutter / 2);
+
+  @media (min-width: $screen-sm-min) {
+    float: left;
+    width: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-sm-column-offset($columns) {
+  @media (min-width: $screen-sm-min) {
+    margin-left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-sm-column-push($columns) {
+  @media (min-width: $screen-sm-min) {
+    left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-sm-column-pull($columns) {
+  @media (min-width: $screen-sm-min) {
+    right: percentage(($columns / $grid-columns));
+  }
+}
+
+// Generate the medium columns
+@mixin make-md-column($columns, $gutter: $grid-gutter-width) {
+  position: relative;
+  min-height: 1px;
+  padding-left:  ($gutter / 2);
+  padding-right: ($gutter / 2);
+
+  @media (min-width: $screen-md-min) {
+    float: left;
+    width: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-md-column-offset($columns) {
+  @media (min-width: $screen-md-min) {
+    margin-left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-md-column-push($columns) {
+  @media (min-width: $screen-md-min) {
+    left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-md-column-pull($columns) {
+  @media (min-width: $screen-md-min) {
+    right: percentage(($columns / $grid-columns));
+  }
+}
+
+// Generate the large columns
+@mixin make-lg-column($columns, $gutter: $grid-gutter-width) {
+  position: relative;
+  min-height: 1px;
+  padding-left:  ($gutter / 2);
+  padding-right: ($gutter / 2);
+
+  @media (min-width: $screen-lg-min) {
+    float: left;
+    width: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-lg-column-offset($columns) {
+  @media (min-width: $screen-lg-min) {
+    margin-left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-lg-column-push($columns) {
+  @media (min-width: $screen-lg-min) {
+    left: percentage(($columns / $grid-columns));
+  }
+}
+@mixin make-lg-column-pull($columns) {
+  @media (min-width: $screen-lg-min) {
+    right: percentage(($columns / $grid-columns));
+  }
+}