diff --git a/.gitattributes b/.gitattributes
index 3295fe2..1c7aca8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,2 @@
 # flutter_app/** linguist-vendored
-src-tauri/gen/** linguist-vendored
+src-tauri/gen/android/** linguist-vendored
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7f4aac3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,16 @@
+Chinese grammar data manually copied and edited from <https://resources.allsetlearning.com/chinese/grammar/Main_Page>
+
+## How it works for Android
+
+Using Tauri, it runs on Android even with dev server down, with `tauri android run`. (while no hot-reloading)
+
+An extra CSS is needed for Android webview fix:-
+
+```css
+body {
+  padding-top: env(safe-area-inset-top);
+  padding-bottom: env(safe-area-inset-bottom);
+  padding-left: env(safe-area-inset-left);
+  padding-right: env(safe-area-inset-right);
+}
+```
diff --git a/docs/.vitepress/theme/custom.css b/docs/.vitepress/theme/custom.css
index f9c34fc..0703a9f 100644
--- a/docs/.vitepress/theme/custom.css
+++ b/docs/.vitepress/theme/custom.css
@@ -1,3 +1,10 @@
+body {
+  padding-top: env(safe-area-inset-top);
+  padding-bottom: env(safe-area-inset-bottom);
+  padding-left: env(safe-area-inset-left);
+  padding-right: env(safe-area-inset-right);
+}
+
 .pinyin {
   font-style: italic;
   opacity: 0.15;