diff --git a/src/assets/example/theme-css.txt b/src/assets/example/theme-css.txt
index 25aaca8..aeb5beb 100644
--- a/src/assets/example/theme-css.txt
+++ b/src/assets/example/theme-css.txt
@@ -57,3 +57,6 @@ li {
 /* 代码块样式 */
 code {
 }
+/* 代码块外层样式 */
+code_pre {
+}
diff --git a/src/utils/index.js b/src/utils/index.js
index 6933ee0..97547e0 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -43,6 +43,7 @@ export function customCssWithTemplate(jsonString, color, theme) {
     `h3`,
     `h4`,
     `code`,
+    `code_pre`,
     `p`,
     `hr`,
     `blockquote`,