diff --git a/packages/renderer/assets/highlight.js/atom-one-dark-reasonable.css b/packages/renderer/assets/highlight.js/atom-one-dark-reasonable.css
index a38738d96..0a43fe26b 100644
--- a/packages/renderer/assets/highlight.js/atom-one-dark-reasonable.css
+++ b/packages/renderer/assets/highlight.js/atom-one-dark-reasonable.css
@@ -6,6 +6,9 @@ Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
 
 */
 .hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
   color: #abb2bf;
   background: #282c34;
 }
@@ -49,12 +52,10 @@ Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
 .hljs-literal {
   color: #56b6c2;
 }
-.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute, .hljs-meta .hljs-string {
+.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute, .hljs-meta-string {
   color: #98c379;
 }
-.hljs-built_in,
-.hljs-title.class_,
-.hljs-class .hljs-title {
+.hljs-built_in, .hljs-class .hljs-title {
   color: #e6c07b;
 }
 .hljs-attr, .hljs-variable, .hljs-template-variable, .hljs-type, .hljs-selector-class, .hljs-selector-attr, .hljs-selector-pseudo, .hljs-number {
diff --git a/packages/renderer/assets/highlight.js/atom-one-light.css b/packages/renderer/assets/highlight.js/atom-one-light.css
index 4ae2c63f8..d5bd1d2a9 100644
--- a/packages/renderer/assets/highlight.js/atom-one-light.css
+++ b/packages/renderer/assets/highlight.js/atom-one-light.css
@@ -19,6 +19,9 @@ hue-6-2: #c18401
 */
 
 .hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
   color: #383a42;
   background: #fafafa;
 }
@@ -51,10 +54,15 @@ hue-6-2: #c18401
 .hljs-regexp,
 .hljs-addition,
 .hljs-attribute,
-.hljs-meta .hljs-string {
+.hljs-meta-string {
   color: #50a14f;
 }
 
+.hljs-built_in,
+.hljs-class .hljs-title {
+  color: #c18401;
+}
+
 .hljs-attr,
 .hljs-variable,
 .hljs-template-variable,
@@ -75,12 +83,6 @@ hue-6-2: #c18401
   color: #4078f2;
 }
 
-.hljs-built_in,
-.hljs-title.class_,
-.hljs-class .hljs-title {
-  color: #c18401;
-}
-
 .hljs-emphasis {
   font-style: italic;
 }