Update styles

app/assets/stylesheets/framework/blank.scss

 .blank-state-parent-container {
   display: flex;
 
-  .col-md-6 {
+  .section-container {
     display: flex;
     flex: 1;
     padding: 10px;
@@ -11,10 +11,12 @@
     width: 100%;
     height: 100%;
     border: 1px solid $border-color;
-    border-radius: 5px;
+    border-radius: $border-radius-default;
 
     &.section-ee-trial {
-      display: table;
+      display: flex;
+      align-items: center;
+      justify-content: center;
     }
   }
 }
@@ -33,10 +35,8 @@
 }
 
 .blank-state.ee-trial {
-  display: table-cell;
   padding: 20px;
   text-align: center;
-  vertical-align: middle;
 }
 
 .blank-state-no-icon {

app/assets/stylesheets/framework/header.scss

@@ -56,7 +56,7 @@ header {
     }
 
     &.has-trial-banner {
-      top: 50px;
+      top: 52px;
     }
 
     .container-fluid {
@@ -319,7 +319,7 @@ header {
 }
 
 .gitlab-ee-trial-banner {
-  padding: 15px;
+  padding: $gl-padding;
   text-align: center;
 
   p {

app/assets/stylesheets/pages/start_ee_trial.scss

@@ -12,7 +12,7 @@
 }
 
 .start-trial-body {
-  .section-body.ee-features {
+  .ee-features {
     border: 1px solid $border-color;
     border-radius: 5px;
     padding: 20px 40px;
@@ -20,8 +20,8 @@
 }
 
 .start-trial-body {
-  .section-body.trial-form {
-    .form-group label {
+  .trial-form {
+    label {
       font-weight: normal;
     }
   }