Fix flex-grow in multi col form

src/sass/blocks/basics/_form.scss

@@ -32,6 +32,7 @@
 
         @include respond-to(sm) {
             flex-grow: 1;
+            flex-basis: 0;
             & + .form__col {
                 margin-left: 10px;
             }

src/tpl/create-account.html

@@ -28,7 +28,7 @@
           </div>
         </div>
         <div class="form__row form__row--multi">
-          <div class="form__col" style="max-width:130px">
+          <div class="form__col">
             <label class="input-select">
               <select ng-model="region">
                 <option value="AF">Afghanistan</option>
@@ -283,7 +283,7 @@
               </select>
             </label>
           </div>
-          <div class="form__col">
+          <div class="form__col form__col--2">
             <input class="input-text" type="tel" ng-model="dial" required placeholder="Mobile phone number" tabindex="5">
           </div>
         </div>