diff --git a/docs/.vitepress/theme/custom.less b/docs/.vitepress/theme/custom.less
new file mode 100644
index 0000000..93fc135
--- /dev/null
+++ b/docs/.vitepress/theme/custom.less
@@ -0,0 +1,4 @@
+.vp-doc h2 {
+  padding-top: 0;
+  border-top: none;
+}
diff --git a/docs/.vitepress/theme/index.mjs b/docs/.vitepress/theme/index.mjs
new file mode 100644
index 0000000..7c0c85d
--- /dev/null
+++ b/docs/.vitepress/theme/index.mjs
@@ -0,0 +1,4 @@
+import DefaultTheme from 'vitepress/theme';
+import './custom.less';
+
+export default DefaultTheme;