diff --git a/customize/themes.mdx b/customize/themes.mdx
index 2e488b32e..643935c43 100644
--- a/customize/themes.mdx
+++ b/customize/themes.mdx
@@ -16,7 +16,7 @@ export const ThemeCard = ({ title, value, description, href }) => {
         <h4 className="text-base font-medium text-gray-900 dark:text-gray-200">{title}</h4>
         <label className="text-sm text-gray-500 dark:text-gray-400">"{value}"</label>
       </div>
-        <div class="mt-1 prose-sm prose-gray mb-2 text-gray-500 dark:text-gray-400">{description}</div>
+        <div className="mt-1 prose-sm prose-gray mb-2 text-gray-500 dark:text-gray-400">{description}</div>
         <div className="flex items-center gap-1 mt-2 text-green-600 group-hover:text-green-800 dark:text-green-500 dark:group-hover:text-green-400">
           <span className="text-sm font-medium">
             See preview
@@ -30,7 +30,7 @@ export const ThemeCard = ({ title, value, description, href }) => {
   );
 };
 
-<div className="pt-10 pb-24 px-4 px-4 max-w-3xl mx-auto prose prose-gray">
+<div className="pt-10 pb-24 px-4 max-w-3xl mx-auto prose prose-gray">
   <label className="eyebrow h-5 text-primary dark:text-primary-light text-sm font-semibold">Core Concepts</label>
   <h1 className="mt-1 mb-2 text-2xl sm:text-3xl text-gray-900 tracking-tight dark:text-gray-200 font-semibold">Themes</h1>
   <label className="text-lg prose prose-gray dark:prose-invert">Customize the appearance of your documentation<br /><br />Configure [theme](/organize/settings-appearance#theme) in docs.json using one of the following themes.</label>