WL-538 changes to make UI responsive

lms/static/sass/base/_base.scss

@@ -134,6 +134,10 @@ a, a:visited {
   width: flex-grid(12);
 }
 
+.no-min-scale {
+  min-width: 0px !important;
+}
+
 span.edx {
   text-transform: none;
   font: inherit;

lms/templates/verify_student/pay_and_verify.html

@@ -53,7 +53,7 @@ from lms.djangoapps.verify_student.views import PayAndVerifyView
 ## JavaScript views may append to this wrapper
 <div id="error-container" style="display: none;"></div>
 
-<div class="container">
+<div class="container no-min-scale">
   <section class="wrapper carousel">
     ## Payment / Verification flow
     ## Most of these data attributes are used to dynamically render