asset/scss/components/_forms.scss

@@ -7,8 +7,6 @@
     .input-group {
       @include breakpoint(small){
         @include xy-cell (12);
-        margin-left: auto;
-        margin-right: auto;
         // @include xy-gutters(auto, $gutter-position: left right);
       }
       @include breakpoint(medium){
@@ -17,6 +15,8 @@
       @include breakpoint(medium){
         @include xy-cell (4);
       }
+      margin-left: auto;
+      margin-right: auto;
       position: relative;
       border-radius: 4rem;
       overflow: hidden;