diff --git a/www/code/app-code.less b/www/code/app-code.less
index 3fa3ccde8..406f02cd0 100644
--- a/www/code/app-code.less
+++ b/www/code/app-code.less
@@ -56,7 +56,7 @@
         }
     }
     #cp-app-code-preview {
-        padding: 5px 20px;
+        padding: 5px 10px;
         overflow: auto;
         display: inline-block;
         height: 100%;
@@ -101,7 +101,7 @@
     #cp-app-code-preview-content {
         background-color: @cp_preview-bg;
         color: @cp_preview-fg;
-        max-width: 40vw;
+        max-width: 70ch;
         margin: 1em auto;
 
         .markdown_preformatted-code;