diff --git a/lms/static/sass/_shame.scss b/lms/static/sass/_shame.scss
index cd13541681..f764dff1b3 100644
--- a/lms/static/sass/_shame.scss
+++ b/lms/static/sass/_shame.scss
@@ -13,8 +13,9 @@
 
   // button elements - not a better place to put these, sadly
   .btn {
+    @include box-sizing('border-box');
     display: block;
-    padding: $baseline/2 $baseline*2.5;
+    padding: $baseline/ $baseline*1.5;
     text-transform: lowercase;
     color: $white;
     letter-spacing: 0.1rem;
diff --git a/lms/templates/mktg_iframe.html b/lms/templates/mktg_iframe.html
index c779f66c9b..e755165297 100644
--- a/lms/templates/mktg_iframe.html
+++ b/lms/templates/mktg_iframe.html
@@ -28,7 +28,7 @@
   <!-- 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 .btn-secondary,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.isnot-open{display:block;padding:10px 50px;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 .btn-secondary strong,.view-partial-mktgregister .action.is-registered strong,.view-partial-mktgregister .btn-tertiary strong,.view-partial-mktgregister .action.isnot-open strong{font-weight:400}.view-partial-mktgregister .btn-primary,.view-partial-mktgregister .action.action-register{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(top, #4697ec 5%,#4880bb 95%);background-image:-moz-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:-ms-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:-o-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:linear-gradient(top, #4697ec 5%,#4880bb 95%)}.view-partial-mktgregister .btn-secondary,.view-partial-mktgregister .action.is-registered{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(top, #999 5%,#666 95%);background-image:-moz-linear-gradient(top, #999 5%,#666 95%);background-image:-ms-linear-gradient(top, #999 5%,#666 95%);background-image:-o-linear-gradient(top, #999 5%,#666 95%);background-image:linear-gradient(top, #999 5%,#666 95%)}.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.isnot-open{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.isnot-open{pointer-events:none !important;outline:none}
+    .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 .btn-secondary,.view-partial-mktgregister .action.is-registered,.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.isnot-open{box-sizing: border-box; display:block;padding:10px 30px;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 .btn-secondary strong,.view-partial-mktgregister .action.is-registered strong,.view-partial-mktgregister .btn-tertiary strong,.view-partial-mktgregister .action.isnot-open strong{font-weight:400}.view-partial-mktgregister .btn-primary,.view-partial-mktgregister .action.action-register{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(top, #4697ec 5%,#4880bb 95%);background-image:-moz-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:-ms-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:-o-linear-gradient(top, #4697ec 5%,#4880bb 95%);background-image:linear-gradient(top, #4697ec 5%,#4880bb 95%)}.view-partial-mktgregister .btn-secondary,.view-partial-mktgregister .action.is-registered{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(top, #999 5%,#666 95%);background-image:-moz-linear-gradient(top, #999 5%,#666 95%);background-image:-ms-linear-gradient(top, #999 5%,#666 95%);background-image:-o-linear-gradient(top, #999 5%,#666 95%);background-image:linear-gradient(top, #999 5%,#666 95%)}.view-partial-mktgregister .btn-tertiary,.view-partial-mktgregister .action.isnot-open{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.isnot-open{pointer-events:none !important;outline:none}