diff --git a/src/code/index.js b/src/code/index.js
index 3f2cf55..ea4f60b 100644
--- a/src/code/index.js
+++ b/src/code/index.js
@@ -170,6 +170,7 @@ class Code extends Component {
 
   setCode(txt, a) {
     let lang = this.lang
+    let skip = false
 
     switch (lang) {
       case 'js':
@@ -180,12 +181,14 @@ class Code extends Component {
         break
 
       case 'html':
+      case 'xml':
         txt = colorHtml(txt)
         break
 
       case 'css':
       case 'scss':
       case 'less':
+        skip = true
         txt = colorCss(txt)
         break
 
@@ -196,7 +199,15 @@ class Code extends Component {
     }
     // 除代码高亮用的特殊标签 <c></c> 外, 其他的全部转义
     // 避免渲染时混乱
-    txt = txt.replace(/<(\/?)(?!c)(\w+)([^>]*?)>/g, '&lt;$1$2$3>')
+
+    if (skip === false) {
+      txt = txt
+        .replace(/<(\/?)(?!c)(\w+)([^>]*?)>/g, '&lt;$1$2$3>')
+        .replace(/<!(doctype)([^>]*?)>/gi, '&lt;$1$2>')
+        .replace(/<\?([^\?>]*?)\?>/g, '&lt;?$1?>')
+        .replace(/<\!\-\-([^>]*?)\-\->/g, '&lt;!--$1--&gt;')
+    }
+
     this.#code = txt.split('\n')
   }