diff --git a/browser/components/CodeEditor.js b/browser/components/CodeEditor.js
index 759cd507..76b73941 100644
--- a/browser/components/CodeEditor.js
+++ b/browser/components/CodeEditor.js
@@ -93,7 +93,8 @@ export default class CodeEditor extends React.Component {
   setMode (mode) {
     let syntax = CodeMirror.findModeByName(pass(mode))
     if (syntax == null) syntax = CodeMirror.findModeByName('Plain Text')
-    this.editor.setOption('mode', syntax.mode)
+
+    this.editor.setOption('mode', syntax.mime)
     CodeMirror.autoLoadMode(this.editor, syntax.mode)
   }
 
diff --git a/browser/components/markdown.styl b/browser/components/markdown.styl
index 39992f4e..e6f33b2c 100644
--- a/browser/components/markdown.styl
+++ b/browser/components/markdown.styl
@@ -196,7 +196,7 @@ code
   margin-right 2px
 pre
   padding 0.5em !important
-  border solid 1px alpha(borderColor, 0.5)
+  border solid 1px #D1D1D1
   border-radius 5px
   overflow-x auto
   margin 0 0 1em
@@ -233,6 +233,7 @@ table
       line-height 1.6
       border-width 1px 0 2px 1px
       border-color borderColor
+      font-weight bold
       &:last-child
         border-right solid 1px borderColor
   tbody
@@ -271,6 +272,7 @@ body[data-theme="dark"]
     background-color lighten(themeDarkPreview, 5%)
 
   pre
+    border-color lighten(#21252B, 20%)
     code
       background-color transparent