diff --git a/README.md b/README.md
index 1f41d18..adf2557 100644
--- a/README.md
+++ b/README.md
@@ -1,46 +1,11 @@
-<style>
-.app-nav {
-    margin: 0px 40px 0 0;
-    position: absolute;
-    right: 0;
-    text-align: right;
-    z-index: 10;
-}
-
-.app-nav li, .app-nav ul {
-    display: inline-block;
-    list-style: none;
-    margin: 0;
-}
-
-.app-nav li {
-    display: inline-block;
-    margin: 0 1rem;
-    padding: 5px 0;
-    position: relative;
-    cursor: pointer;
-}
-
-.app-nav a {
-    color: inherit;
-    font-size: 16px;
-    text-decoration: none;
-    transition: color .3s;
-}
-
-.app-nav a.active {
-    border-bottom: 2px solid var(--theme-color,#42b983);
-}
-
-.app-nav a.active, .app-nav a:hover {
-    color: var(--theme-color,#42b983);
-}
-</style>
-
-<nav class="app-nav">
-    <ul>
-        <li><a href="/" class="active">简体中文</a></li>
-        <li><a href="README_en.md">English</a></li>
+<nav style="margin: 0px 40px 0 0;position: absolute;right: 0;text-align: right;z-index: 10;">
+    <ul style="display: inline-block;list-style: none;margin: 0;">
+        <li style="display: inline-block;margin: 0 1rem;padding: 5px 0;position: relative;cursor: pointer;">
+            <a href="https://github.com/huihut/interview" style="color: inherit;font-size: 16px;text-decoration: none;transition: color .3s;">简体中文</a>
+        </li>
+        <li style="display: inline-block;margin: 0 1rem;padding: 5px 0;position: relative;cursor: pointer;">
+            <a href="README_en.md" style="color: inherit;font-size: 16px;text-decoration: none;transition: color .3s; border-bottom: 2px solid var(--theme-color,#42b983); color: var(--theme-color,#42b983);">English</a>
+        </li>
     </ul>
 </nav>
 
diff --git a/README_en.md b/README_en.md
index d0d1f4f..14a866a 100644
--- a/README_en.md
+++ b/README_en.md
@@ -1,46 +1,11 @@
-<style>
-.app-nav {
-    margin: 0px 40px 0 0;
-    position: absolute;
-    right: 0;
-    text-align: right;
-    z-index: 10;
-}
-
-.app-nav li, .app-nav ul {
-    display: inline-block;
-    list-style: none;
-    margin: 0;
-}
-
-.app-nav li {
-    display: inline-block;
-    margin: 0 1rem;
-    padding: 5px 0;
-    position: relative;
-    cursor: pointer;
-}
-
-.app-nav a {
-    color: inherit;
-    font-size: 16px;
-    text-decoration: none;
-    transition: color .3s;
-}
-
-.app-nav a.active {
-    border-bottom: 2px solid var(--theme-color,#42b983);
-}
-
-.app-nav a.active, .app-nav a:hover {
-    color: var(--theme-color,#42b983);
-}
-</style>
-
-<nav class="app-nav">
-    <ul>
-        <li><a href="/">简体中文</a></li>
-        <li><a href="README_en.md" class="active">English</a></li>
+<nav style="margin: 0px 40px 0 0;position: absolute;right: 0;text-align: right;z-index: 10;">
+    <ul style="display: inline-block;list-style: none;margin: 0;">
+        <li style="display: inline-block;margin: 0 1rem;padding: 5px 0;position: relative;cursor: pointer;">
+            <a href="https://github.com/huihut/interview" style="color: inherit;font-size: 16px;text-decoration: none;transition: color .3s; border-bottom: 2px solid var(--theme-color,#42b983); color: var(--theme-color,#42b983);">简体中文</a>
+        </li>
+        <li style="display: inline-block;margin: 0 1rem;padding: 5px 0;position: relative;cursor: pointer;">
+            <a href="README_en.md" style="color: inherit;font-size: 16px;text-decoration: none;transition: color .3s;">English</a>
+        </li>
     </ul>
 </nav>