diff --git a/components/Footer.tsx b/components/Footer.tsx
index 15e2413..a8dea8a 100644
--- a/components/Footer.tsx
+++ b/components/Footer.tsx
@@ -32,6 +32,7 @@ export const Footer: React.FC<{
         <div className={styles.settings}>
           <a
             className={styles.toggleDarkMode}
+            href='#'
             onClick={toggleDarkModeCb}
             title='Toggle dark mode'
           >
diff --git a/components/styles.module.css b/components/styles.module.css
index 981602b..6cc1e1f 100644
--- a/components/styles.module.css
+++ b/components/styles.module.css
@@ -94,7 +94,7 @@
 }
 
 .zhihu:hover {
-  color: #0066FF;
+  color: #0066ff;
 }
 
 .github:hover {