diff --git a/public/manifest.json b/public/manifest.json
index dc4097e..07742e9 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -23,5 +23,11 @@
     "32": "images/icon32.png",
     "48": "images/icon48.png",
     "128": "images/icon128.png"
-  }
+  },
+  "content_scripts": [
+    {
+      "matches": ["https://www.netflix.com/watch/*"],
+      "js": ["assets/content-scripts/netflix.js"]
+    }
+  ]
 }
diff --git a/src/App.tsx b/src/App.tsx
index 0a31518..e32f996 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,16 +1,15 @@
 import { Button, ColorPicker, InputLabel, Stack, Switch } from '@mantine/core';
-import { useCallback, useEffect } from 'react';
+import { useCallback } from 'react';
 import { IoRefresh } from 'react-icons/io5';
 import { useChromeSyncStorageState } from './hooks';
 import {
   Style,
   defaultStyle,
-  applyStyle,
   styleStorageKey,
   isOnStorageKey,
   defaultIsOn,
   IsOn,
-  removeStyle,
+  sendChangeStyleMessage,
 } from './modules';
 
 const mantinePaddingMd: number = 16;
@@ -24,36 +23,42 @@ export function App() {
 
   const handleChangeOnOff = useCallback(
     (e: React.ChangeEvent<HTMLInputElement>) => {
-      setIsOn(e.currentTarget.checked);
+      setIsOn(() => {
+        const checked = e.target.checked;
+        sendChangeStyleMessage(checked, style);
+        return checked;
+      });
     },
-    [setIsOn]
+    [setIsOn, style]
   );
 
-  const handleChangeTextColor = useCallback(
-    (value: string) => {
-      setStyle((prev) => ({ ...prev, textColor: value }));
+  const handleChangeColor = useCallback(
+    (property: keyof Style, value: string) => {
+      setStyle((prev) => {
+        const style = { ...prev, [property]: value };
+        sendChangeStyleMessage(isOn, style);
+        return style;
+      });
     },
-    [setStyle]
+    [isOn, setStyle]
+  );
+
+  const handleChangeTextColor = useCallback(
+    (value: string) => handleChangeColor('textColor', value),
+    [handleChangeColor]
   );
 
   const handleChangeBgColor = useCallback(
-    (value: string) => {
-      setStyle((prev) => ({ ...prev, backgroundColor: value }));
-    },
-    [setStyle]
+    (value: string) => handleChangeColor('backgroundColor', value),
+    [handleChangeColor]
   );
 
   const handleClickReset = useCallback(() => {
-    setStyle(defaultStyle);
-  }, [setStyle]);
-
-  useEffect(() => {
-    if (isOn) {
-      applyStyle(style);
-    } else {
-      removeStyle(style);
-    }
-  }, [isOn, style]);
+    setStyle(() => {
+      sendChangeStyleMessage(isOn, defaultStyle);
+      return defaultStyle;
+    });
+  }, [isOn, setStyle]);
 
   return (
     <Stack miw={containerMinWidth} p="md">
diff --git a/src/content-scripts/netflix.ts b/src/content-scripts/netflix.ts
new file mode 100644
index 0000000..905e293
--- /dev/null
+++ b/src/content-scripts/netflix.ts
@@ -0,0 +1,69 @@
+const isOnStorageKey: string = 'isOn';
+
+interface Style {
+  textColor: string;
+  backgroundColor: string;
+}
+
+const styleStorageKey: string = 'style';
+
+const defaultStyle: Style = {
+  textColor: 'rgba(255, 255, 255, 1)',
+  backgroundColor: 'rgba(0, 0, 0, 0.5)',
+};
+
+function applyStyle(style: Style) {
+  const css = `
+    .player-timedtext > .player-timedtext-text-container > span > span {
+      color: ${style.textColor} !important;
+      background-color: ${style.backgroundColor} !important;
+    }
+  `;
+
+  const currentStyleTag = document.querySelector('style#sub-stylist-style') as HTMLStyleElement | null;
+  if (currentStyleTag) {
+    currentStyleTag.textContent = css;
+    return;
+  }
+
+  const styleTag = document.createElement('style');
+  styleTag.id = 'sub-stylist-style';
+  styleTag.textContent = css;
+  document.head.appendChild(styleTag);
+}
+
+function removeStyle() {
+  const currentStyleTag = document.querySelector('style#sub-stylist-style') as HTMLStyleElement | null;
+  if (currentStyleTag) {
+    currentStyleTag.remove();
+  }
+}
+
+async function loadAndApplyStyle() {
+  const states = await chrome.storage.sync.get([isOnStorageKey, styleStorageKey]);
+  const isOn = states[isOnStorageKey] as boolean | undefined;
+  if (!isOn) {
+    return;
+  }
+
+  const style = states[styleStorageKey] as Style | undefined;
+  if (style !== undefined) {
+    applyStyle(style);
+  } else {
+    applyStyle(defaultStyle);
+  }
+}
+
+chrome.runtime.onMessage.addListener((message) => {
+  if (message.action === 'changeStyle') {
+    const isOn = message.payload.isOn as boolean;
+    if (isOn) {
+      const style = message.payload.style as Style;
+      applyStyle(style);
+    } else {
+      removeStyle();
+    }
+  }
+});
+
+loadAndApplyStyle();
diff --git a/src/modules/style.ts b/src/modules/style.ts
index 4509952..bd7eaf0 100644
--- a/src/modules/style.ts
+++ b/src/modules/style.ts
@@ -15,25 +15,8 @@ export const defaultStyle: Style = {
   backgroundColor: 'rgba(0, 0, 0, 0.5)',
 };
 
-export function getPlatformOverrideCss(url: string, style: Style) {
-  //
-  // Netflix
-  //
-  if (url.startsWith('https://www.netflix.com/watch/')) {
-    return `
-      .player-timedtext > .player-timedtext-text-container > span > span {
-        color: ${style.textColor} !important;
-        background-color: ${style.backgroundColor} !important;
-      }
-    `;
-  }
-
-  //
-  // Other will append below
-  //
-}
-
-export async function applyStyle(style: Style) {
+export async function sendChangeStyleMessage(isOn: boolean, style: Style) {
+  console.log('send "changeStyle" message');
   const activeTab = await getActiveTab();
 
   if (!activeTab.id) {
@@ -41,44 +24,5 @@ export async function applyStyle(style: Style) {
     return;
   }
 
-  if (!activeTab.url) {
-    console.error("don't have active tab url");
-    return;
-  }
-
-  const css = getPlatformOverrideCss(activeTab.url, style);
-  if (!css) {
-    console.error('this platform not support');
-    return;
-  }
-
-  await chrome.scripting.insertCSS({
-    target: { tabId: activeTab.id },
-    css: css,
-  });
-}
-
-export async function removeStyle(style: Style) {
-  const activeTab = await getActiveTab();
-
-  if (!activeTab.id) {
-    console.error("don't have active tab id");
-    return;
-  }
-
-  if (!activeTab.url) {
-    console.error("don't have active tab url");
-    return;
-  }
-
-  const css = getPlatformOverrideCss(activeTab.url, style);
-  if (!css) {
-    console.error('this platform not support');
-    return;
-  }
-
-  await chrome.scripting.removeCSS({
-    target: { tabId: activeTab.id },
-    css: css,
-  });
+  await chrome.tabs.sendMessage(activeTab.id, { action: 'changeStyle', payload: { isOn, style } });
 }
diff --git a/src/service-worker.ts b/src/service-worker.ts
index 3486962..e69de29 100644
--- a/src/service-worker.ts
+++ b/src/service-worker.ts
@@ -1,21 +0,0 @@
-import { applyStyle, defaultStyle, isOnSchema, isOnStorageKey, styleSchema, styleStorageKey } from './modules';
-
-async function loadAndApplyStyle() {
-  const states = await chrome.storage.sync.get([isOnStorageKey, styleStorageKey]);
-  const isOn = isOnSchema.optional().parse(states[isOnStorageKey]);
-  if (!isOn) {
-    console.warn('now off');
-    return;
-  }
-
-  const style = styleSchema.optional().parse(states[styleStorageKey]);
-  if (style !== undefined) {
-    await applyStyle(style);
-  } else {
-    await applyStyle(defaultStyle);
-  }
-}
-
-chrome.tabs.onUpdated.addListener(() => {
-  loadAndApplyStyle();
-});
diff --git a/vite.config.ts b/vite.config.ts
index 7e54ba9..646f380 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -9,6 +9,7 @@ export default defineConfig({
       input: {
         popup: 'popup.html',
         'service-worker': './src/service-worker.ts',
+        'content-scripts/netflix': './src/content-scripts/netflix.ts',
       },
 
       // build without hash