adding space above form wrapper

opentech/static_src/src/sass/components/_wrapper.scss

@@ -91,11 +91,11 @@
 
     &--form {
         padding: 20px;
-        margin-bottom: 20px;
+        margin: 20px auto;
 
         @include media-query(tablet-portrait) {
             padding: 2rem 17rem 2rem 5rem;
-            margin-bottom: 3rem;
+            margin: 1rem auto 3rem;
         }
     }