diff --git a/shiki.config.mjs b/shiki.config.mjs
index cf211a2e..75fc7b45 100644
--- a/shiki.config.mjs
+++ b/shiki.config.mjs
@@ -4,8 +4,10 @@ import cLanguage from 'shiki/langs/c.mjs';
 import cmakeLanguage from 'shiki/langs/cmake.mjs';
 import coffeeScriptLanguage from 'shiki/langs/coffeescript.mjs';
 import cPlusPlusLanguage from 'shiki/langs/cpp.mjs';
+import cssLanguage from 'shiki/langs/css.mjs';
 import diffLanguage from 'shiki/langs/diff.mjs';
 import dockerLanguage from 'shiki/langs/docker.mjs';
+import htmlLanguage from 'shiki/langs/html.mjs';
 import httpLanguage from 'shiki/langs/http.mjs';
 import javaScriptLanguage from 'shiki/langs/javascript.mjs';
 import jsonLanguage from 'shiki/langs/json.mjs';
@@ -41,6 +43,8 @@ export default {
     ...coffeeScriptLanguage,
     ...cmakeLanguage,
     ...pythonLanguage,
+    ...htmlLanguage,
+    ...cssLanguage,
     { ...javaScriptLanguage[0], aliases: ['mjs', 'cjs', 'js'] },
   ],
 };