fix overflowing thumbnails in responsive <767px layouts

less/responsive.less

@@ -189,6 +189,13 @@
     margin: 0;
   }
 
+  // THUMBNAILS
+  // ----------
+  .thumbnails [class*="span"] {
+    width: auto;
+  }
+
+/*
   // FORM FIELDS
   // -----------
   // Make them behave like divs
@@ -198,7 +205,9 @@
   .uneditable-input {
     .box-sizing(border-box);
     max-width: 100%;
+    min-height: 20px;
   }
+*/
 }