diff --git a/packages/noco-docs/src/css/custom.scss b/packages/noco-docs/src/css/custom.scss
index c596cb24cf..f09965d497 100644
--- a/packages/noco-docs/src/css/custom.scss
+++ b/packages/noco-docs/src/css/custom.scss
@@ -70,4 +70,15 @@
     var(--ifm-color-emphasis-200) 0%,
     var(--ifm-color-emphasis-100) 100%
   );
-}
\ No newline at end of file
+}
+
+
+@media screen and (min-width: 768px) {
+  .DocSearch.DocSearch-Button{
+    width: 200px;
+    position: fixed;
+    left:50%;
+    transform: translateX(-50%);
+    top: 12px;
+  }
+}