SUP-598, On Apple landing page in mobile view some text/fields are cut off from screen

Fixed issue: the "Your email please" input field gets too small from 481px to 568px as raised by Nick during code review.

Author: vikasrohit

app/content/css/landing.scss

@@ -104,6 +104,9 @@
 
             .mktoFormCol {
               width: 100%;
+              .mktoFieldWrap {
+                width: 100%;
+              }
             }
             input {
               width: 100% !important;