Fix graph columns

app/assets/stylesheets/pages/stat_graph.scss

@@ -14,18 +14,27 @@
   font-size: 10px;
 }
 
+#contributors-master {
+  @include make-md-column(12);
+
+  svg {
+    width: 100%;
+  }
+}
+
 #contributors {
   .contributors-list {
     margin: 0 0 10px;
     list-style: none;
     padding: 0;
+
+    svg {
+      width: 100%;
+    }
   }
 
   .person {
-    &:nth-child(even) {
-      float: right;
-    }
-    float: left;
+    @include make-md-column(6);
     margin-top: 10px;
   }
 

app/views/projects/graphs/show.html.haml

@@ -22,7 +22,7 @@
       %p.light
         Commits to #{@ref}, excluding merge commits. Limited to 6,000 commits.
       %input#brush_change{:type => "hidden"}
-    .graphs
+    .graphs.row
       #contributors-master
       #contributors.clearfix
         %ol.contributors-list.clearfix