diff --git a/lms/static/sass/_shame.scss b/lms/static/sass/_shame.scss
index 041c42a66f..f67683afe4 100644
--- a/lms/static/sass/_shame.scss
+++ b/lms/static/sass/_shame.scss
@@ -43,9 +43,14 @@
   text-align: center;
   text-shadow: none;
   font-weight: 500;
+  letter-spacing: 0;
 
-  &.disabled, &[disabled] {
+  &.disabled, &[disabled], &.is-disabled {
     background: $m-gray-d3;
+
+    &:hover {
+      background: $m-gray-d3 !important; // needed for IE currently
+    }
   }
 }
 
@@ -73,6 +78,7 @@
 
   &.disabled, &[disabled] {
     box-shadow: none;
+    background: $m-gray-d3; // needed for IE currently
   }
 }
 
@@ -100,6 +106,7 @@
 
   &.disabled, &[disabled] {
     box-shadow: none;
+    background: $m-gray-d3; // needed for IE currently
   }
 }
 
@@ -142,7 +149,7 @@
   }
 
   .action {
-    @include font-size(16);
+    font-size: 16px;
     font-weight: 500;
 
     // register or access courseware
diff --git a/lms/templates/courseware/mktg_course_about.html b/lms/templates/courseware/mktg_course_about.html
index dc667c850c..8dedc70337 100644
--- a/lms/templates/courseware/mktg_course_about.html
+++ b/lms/templates/courseware/mktg_course_about.html
@@ -53,7 +53,7 @@
         %elif allow_registration:
           <a class="action action-register register" href="#">Register for <strong>${course.number}</strong></a>
         %else:
-          <div class="action registration-closed">Registration Is Closed</div>
+          <div class="action registration-closed is-disabled">Registration Is Closed</div>
         %endif
     </li>
   </ul>
diff --git a/lms/templates/mktg_iframe.html b/lms/templates/mktg_iframe.html
index 6d02f3fcc5..abaf466785 100644
--- a/lms/templates/mktg_iframe.html
+++ b/lms/templates/mktg_iframe.html
@@ -27,14 +27,7 @@
 
   <!-- repeated button styles needed for IE (copied from _shame.scss) -->
   <style type="text/css" media="screen">
-
-    .view-partial-mktgregister{background:transparent}.view-partial-mktgregister .wrapper-view{overflow:hidden}.view-partial-mktgregister .btn,.view-partial-mktgregister .btn-primary,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware,.view-partial-mktgregister .btn-secondary,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed,.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.coming-soon{-webkit-box-sizing:"border-box";-moz-box-sizing:"border-box";box-sizing:"border-box";display:block;padding:10px;text-transform:lowercase;color:#fff;letter-spacing:0.1rem;cursor:pointer;text-align:center;border:none !important;text-decoration:none;text-shadow:none;letter-spacing:0.1rem;font-size:17px;font-weight:300;box-shadow:0 !important}.view-partial-mktgregister .btn strong,.view-partial-mktgregister .btn-primary strong,.view-partial-mktgregister .action.action-register strong,.view-partial-mktgregister .action.access-courseware strong,.view-partial-mktgregister .btn-secondary strong,.view-partial-mktgregister .action.is-registered strong,.view-partial-mktgregister .action.registration-closed strong,.view-partial-mktgregister .btn-tertiary strong,.view-partial-mktgregister .action.coming-soon strong{font-weight:400;text-transform:none}.view-partial-mktgregister .btn-primary,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware{background-color:#4697ec;background-image:-webkit-gradient(linear, left top, left bottom, color-stop(5%, #4697ec),color-stop(95%, #4880bb));background-image:-webkit-linear-gradient(#4697ec 5%,#4880bb 95%);background-image:linear-gradient(#4697ec 5%,#4880bb 95%)}.view-partial-mktgregister .btn-secondary,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed{background-color:#999;background-image:-webkit-gradient(linear, left top, left bottom, color-stop(5%, #999),color-stop(95%, #666));background-image:-webkit-linear-gradient(#999 5%,#666 95%);background-image:linear-gradient(#999 5%,#666 95%)}.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.coming-soon{background:#e6f5fc;color:#5597dd}.view-partial-mktgregister .list-actions{list-style:none;margin:0;padding:0}.view-partial-mktgregister .list-actions .item{margin:0}.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed{pointer-events:none !important}.view-partial-mktgregister .action.coming-soon{pointer-events:none !important;outline:none}
-
-
-
-
-
-
+    .text-sr{border:0;clip:rect(1px 1px 1px 1px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}.m-btn,.m-btn-primary,.m-btn-primary-blue,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware,.m-btn-primary-pink,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed,.view-partial-mktgregister .action.coming-soon{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;-webkit-transition:color 0.25s ease-in-out,background 0.25s ease-in-out,box-shadow 0.25s ease-in-out;-moz-transition:color 0.25s ease-in-out,background 0.25s ease-in-out,box-shadow 0.25s ease-in-out;transition:color 0.25s ease-in-out,background 0.25s ease-in-out,box-shadow 0.25s ease-in-out;display:inline-block;cursor:pointer;text-decoration:none}.m-btn.disabled,.disabled.m-btn-primary,.disabled.m-btn-primary-blue,.view-partial-mktgregister .disabled.action.action-register,.view-partial-mktgregister .disabled.action.access-courseware,.disabled.m-btn-primary-pink,.view-partial-mktgregister .disabled.action.is-registered,.view-partial-mktgregister .disabled.action.registration-closed,.view-partial-mktgregister .disabled.action.coming-soon,.m-btn[disabled],[disabled].m-btn-primary,[disabled].m-btn-primary-blue,.view-partial-mktgregister [disabled].action.action-register,.view-partial-mktgregister [disabled].action.access-courseware,[disabled].m-btn-primary-pink,.view-partial-mktgregister [disabled].action.is-registered,.view-partial-mktgregister [disabled].action.registration-closed,.view-partial-mktgregister [disabled].action.coming-soon{cursor:default;pointer-events:none}.m-btn-pill{border-radius:4px}.m-btn-rounded{border-radius:10px}.m-btn-edged,.m-btn-primary,.m-btn-primary-blue,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware,.m-btn-primary-pink,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed,.view-partial-mktgregister .action.coming-soon{border-radius:2px}.m-btn-primary,.m-btn-primary-blue,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware,.m-btn-primary-pink,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed,.view-partial-mktgregister .action.coming-soon{border:none;padding:10px 20px;text-align:center;text-shadow:none;font-weight:500;letter-spacing:0}.m-btn-primary.disabled,.disabled.m-btn-primary-blue,.view-partial-mktgregister .disabled.action.action-register,.view-partial-mktgregister .disabled.action.access-courseware,.disabled.m-btn-primary-pink,.view-partial-mktgregister .disabled.action.is-registered,.view-partial-mktgregister .disabled.action.registration-closed,.view-partial-mktgregister .disabled.action.coming-soon,.m-btn-primary[disabled],[disabled].m-btn-primary-blue,.view-partial-mktgregister [disabled].action.action-register,.view-partial-mktgregister [disabled].action.access-courseware,[disabled].m-btn-primary-pink,.view-partial-mktgregister [disabled].action.is-registered,.view-partial-mktgregister [disabled].action.registration-closed,.view-partial-mktgregister [disabled].action.coming-soon,.m-btn-primary.is-disabled,.is-disabled.m-btn-primary-blue,.view-partial-mktgregister .is-disabled.action.action-register,.view-partial-mktgregister .is-disabled.action.access-courseware,.is-disabled.m-btn-primary-pink,.view-partial-mktgregister .is-disabled.action.is-registered,.view-partial-mktgregister .is-disabled.action.registration-closed,.view-partial-mktgregister .is-disabled.action.coming-soon{background:#646668}.m-btn-primary.disabled:hover,.disabled.m-btn-primary-blue:hover,.view-partial-mktgregister .disabled.action.action-register:hover,.view-partial-mktgregister .disabled.action.access-courseware:hover,.disabled.m-btn-primary-pink:hover,.view-partial-mktgregister .disabled.action.is-registered:hover,.view-partial-mktgregister .disabled.action.registration-closed:hover,.view-partial-mktgregister .disabled.action.coming-soon:hover,.m-btn-primary[disabled]:hover,[disabled].m-btn-primary-blue:hover,.view-partial-mktgregister [disabled].action.action-register:hover,.view-partial-mktgregister [disabled].action.access-courseware:hover,[disabled].m-btn-primary-pink:hover,.view-partial-mktgregister [disabled].action.is-registered:hover,.view-partial-mktgregister [disabled].action.registration-closed:hover,.view-partial-mktgregister [disabled].action.coming-soon:hover,.m-btn-primary.is-disabled:hover,.is-disabled.m-btn-primary-blue:hover,.view-partial-mktgregister .is-disabled.action.action-register:hover,.view-partial-mktgregister .is-disabled.action.access-courseware:hover,.is-disabled.m-btn-primary-pink:hover,.view-partial-mktgregister .is-disabled.action.is-registered:hover,.view-partial-mktgregister .is-disabled.action.registration-closed:hover,.view-partial-mktgregister .is-disabled.action.coming-soon:hover{background:#646668 !important}.m-btn-primary-blue,.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware{box-shadow:0 2px 1px 0 #0a4a67;background:#126f9a;color:#fff}.m-btn-primary-blue:hover,.view-partial-mktgregister .action.action-register:hover,.view-partial-mktgregister .action.access-courseware:hover,.m-btn-primary-blue:active,.view-partial-mktgregister .action.action-register:active,.view-partial-mktgregister .action.access-courseware:active{background:#1790c7}.m-btn-primary-blue.current,.view-partial-mktgregister .current.action.action-register,.view-partial-mktgregister .current.action.access-courseware,.m-btn-primary-blue.active,.view-partial-mktgregister .active.action.action-register,.view-partial-mktgregister .active.action.access-courseware{box-shadow:inset 0 2px 1px 1px #1580b0;background:#1aa1de;color:#1580b0}.m-btn-primary-blue.current:hover,.view-partial-mktgregister .current.action.action-register:hover,.view-partial-mktgregister .current.action.access-courseware:hover,.m-btn-primary-blue.current:active,.view-partial-mktgregister .current.action.action-register:active,.view-partial-mktgregister .current.action.access-courseware:active,.m-btn-primary-blue.active:hover,.view-partial-mktgregister .active.action.action-register:hover,.view-partial-mktgregister .active.action.access-courseware:hover,.m-btn-primary-blue.active:active,.view-partial-mktgregister .active.action.action-register:active,.view-partial-mktgregister .active.action.access-courseware:active{box-shadow:inset 0 2px 1px 1px #126f9a;color:#126f9a}.m-btn-primary-blue.disabled,.view-partial-mktgregister .disabled.action.action-register,.view-partial-mktgregister .disabled.action.access-courseware,.m-btn-primary-blue[disabled],.view-partial-mktgregister [disabled].action.action-register,.view-partial-mktgregister [disabled].action.access-courseware{box-shadow:none;background:#646668}.m-btn-primary-pink,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed,.view-partial-mktgregister .action.coming-soon{box-shadow:0 2px 1px 0 #8c204f;background:#b52a67;color:#fff}.m-btn-primary-pink:hover,.view-partial-mktgregister .action.is-registered:hover,.view-partial-mktgregister .action.registration-closed:hover,.view-partial-mktgregister .action.coming-soon:hover,.m-btn-primary-pink:active,.view-partial-mktgregister .action.is-registered:active,.view-partial-mktgregister .action.registration-closed:active,.view-partial-mktgregister .action.coming-soon:active{background:#d7548e}.m-btn-primary-pink.current,.view-partial-mktgregister .current.action.is-registered,.view-partial-mktgregister .current.action.registration-closed,.view-partial-mktgregister .current.action.coming-soon,.m-btn-primary-pink.active,.view-partial-mktgregister .active.action.is-registered,.view-partial-mktgregister .active.action.registration-closed,.view-partial-mktgregister .active.action.coming-soon{box-shadow:inset 0 2px 1px 1px #a0255b;background:#d33f80;color:#a0255b}.m-btn-primary-pink.current:hover,.view-partial-mktgregister .current.action.is-registered:hover,.view-partial-mktgregister .current.action.registration-closed:hover,.view-partial-mktgregister .current.action.coming-soon:hover,.m-btn-primary-pink.current:active,.view-partial-mktgregister .current.action.is-registered:active,.view-partial-mktgregister .current.action.registration-closed:active,.view-partial-mktgregister .current.action.coming-soon:active,.m-btn-primary-pink.active:hover,.view-partial-mktgregister .active.action.is-registered:hover,.view-partial-mktgregister .active.action.registration-closed:hover,.view-partial-mktgregister .active.action.coming-soon:hover,.m-btn-primary-pink.active:active,.view-partial-mktgregister .active.action.is-registered:active,.view-partial-mktgregister .active.action.registration-closed:active,.view-partial-mktgregister .active.action.coming-soon:active{box-shadow:inset 0 2px 1px 1px #8c204f;color:#771c44}.m-btn-primary-pink.disabled,.view-partial-mktgregister .disabled.action.is-registered,.view-partial-mktgregister .disabled.action.registration-closed,.view-partial-mktgregister .disabled.action.coming-soon,.m-btn-primary-pink[disabled],.view-partial-mktgregister [disabled].action.is-registered,.view-partial-mktgregister [disabled].action.registration-closed,.view-partial-mktgregister [disabled].action.coming-soon{box-shadow:none;background:#646668}.view-register .form-actions button[type="submit"],.view-login .form-actions button[type="submit"],.view-passwordreset .form-actions button[type="submit"]{text-transform:none;vertical-align:middle;font-weight:600 !important;letter-spacing:0 !important}.view-partial-mktgregister .wrapper-view{overflow:hidden}.view-partial-mktgregister .list-actions{list-style:none;margin:0;padding:0}.view-partial-mktgregister .list-actions .item{margin:0}.view-partial-mktgregister .action{font-size:16px;font-weight:500}.view-partial-mktgregister .action.action-register,.view-partial-mktgregister .action.access-courseware{display:block}.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .action.registration-closed{pointer-events:none !important;display:block}.view-partial-mktgregister .action.coming-soon{pointer-events:none !important;outline:none;display:block}
 
   </style>
 </head>