Fixes a styling issue in MarkdownEditor split mode

modules/backend/formwidgets/markdowneditor/assets/css/markdowneditor.css

@@ -5,6 +5,8 @@
   background: #fff;
   -webkit-transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
   transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
+  -webkit-border-radius: 5px;
+  -moz-border-radius: 5px;
   border-radius: 5px;
 }
 .field-markdowneditor textarea {
@@ -78,6 +80,9 @@
 .field-markdowneditor.mode-tab.is-preview .editor-preview {
   display: block;
 }
+.field-markdowneditor.mode-split {
+  overflow: hidden;
+}
 .field-markdowneditor.mode-split .editor-preview {
   float: right;
   width: 50%;
@@ -184,6 +189,8 @@
 .field-markdowneditor .editor-preview pre.prettyprint {
   border-width: 0;
   padding: 13px 16px;
+  -webkit-border-radius: 3px;
+  -moz-border-radius: 3px;
   border-radius: 3px;
   line-height: 130%;
 }

modules/backend/formwidgets/markdowneditor/assets/less/markdowneditor.less

@@ -13,6 +13,7 @@
     position: relative;
     border: 1px solid @color-form-field-border;
     background: #fff;
+
     textarea { .opacity(0); }
     .transition(@input-transition);
 
@@ -97,6 +98,8 @@
     //
 
     &.mode-split {
+        overflow: hidden; // clearfix
+
         .editor-preview {
             float: right;
             width: 50%;