Fix size of variable-value column for small screens.

app/assets/stylesheets/pages/projects.scss

@@ -946,6 +946,15 @@ pre.light-well {
       max-width: 150px;
     }
   }
+
+  .variable-value {
+    @media(max-width: $screen-xs-max) {
+      width: 150px;
+      max-width: 150px;
+      overflow: hidden;
+      word-wrap: break-word;
+    }
+  }
 }
 
 .services-installation-info .row {