diff --git a/components/ChatView/Textarea.tsx b/components/ChatView/MessageTextarea.tsx
similarity index 64%
rename from components/ChatView/Textarea.tsx
rename to components/ChatView/MessageTextarea.tsx
index cb50e13..b3eefb5 100644
--- a/components/ChatView/Textarea.tsx
+++ b/components/ChatView/MessageTextarea.tsx
@@ -1,17 +1,24 @@
 import axios from "axios";
-import { useRef, useState } from "react";
+import { useEffect, useRef, useState } from "react";
+import TextareaAutosize from "react-textarea-autosize";
 import { useChatStore, useMessageStore, useUserStore } from "../../store";
 import { UserRole } from "../../types";
 import { generateUUID } from "../../utils";
 import Icon from "../Icon";
 
-const Textarea = () => {
+const MessageTextarea = () => {
   const userStore = useUserStore();
   const chatStore = useChatStore();
   const messageStore = useMessageStore();
   const [value, setValue] = useState<string>("");
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
+  useEffect(() => {
+    if (textareaRef.current) {
+      textareaRef.current.focus();
+    }
+  }, []);
+
   const handleChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
     setValue(e.target.value);
   };
@@ -49,11 +56,20 @@ const Textarea = () => {
   };
 
   return (
-    <div className="w-full h-auto border-t relative">
-      <textarea ref={textareaRef} className="w-full h-full outline-none pt-2 px-2 resize-none" onChange={handleChange} rows={1} />
-      <Icon.Send className="absolute bottom-2 right-2" onClick={handleSend} />
+    <div className="w-full h-auto border rounded-md mb-4 px-2 py-1 relative shadow bg-white">
+      <TextareaAutosize
+        ref={textareaRef}
+        className="w-full h-full outline-none border-none bg-transparent pt-1 mt-1 px-2 resize-none hide-scrollbar"
+        rows={1}
+        minRows={1}
+        maxRows={5}
+        onChange={handleChange}
+      />
+      <div className="absolute bottom-2 right-2 w-8 p-1 cursor-pointer rounded-md hover:shadow hover:bg-gray-100" onClick={handleSend}>
+        <Icon.Send className="w-full h-auto text-blue-800" />
+      </div>
     </div>
   );
 };
 
-export default Textarea;
+export default MessageTextarea;
diff --git a/components/ChatView/MessageView.tsx b/components/ChatView/MessageView.tsx
index 1d52385..13d5490 100644
--- a/components/ChatView/MessageView.tsx
+++ b/components/ChatView/MessageView.tsx
@@ -1,4 +1,7 @@
+import { marked } from "marked";
+import { useUserStore } from "../../store";
 import { Message } from "../../types";
+import "highlight.js/styles/github.css";
 
 interface Props {
   message: Message;
@@ -6,8 +9,22 @@ interface Props {
 
 const Message = (props: Props) => {
   const message = props.message;
+  const userStore = useUserStore();
+  const currentUser = userStore.currentUser;
+  const isCurrentUser = message.creatorId === currentUser.id;
 
-  return <div>{message.content}</div>;
+  return (
+    <div className={`w-full flex flex-row justify-start items-start my-4 ${isCurrentUser ? "justify-end pl-8 sm:pl-16" : "pr-8 sm:pr-16"}`}>
+      {isCurrentUser ? (
+        <div className="w-auto max-w-full bg-white px-3 py-2 rounded-lg rounded-tr-none shadow">{message.content}</div>
+      ) : (
+        <div
+          className="w-auto max-w-full bg-white px-3 py-2 rounded-lg rounded-tl-none shadow"
+          dangerouslySetInnerHTML={{ __html: marked.parse(message.content) }}
+        ></div>
+      )}
+    </div>
+  );
 };
 
 export default Message;
diff --git a/components/ChatView/Sidebar.tsx b/components/ChatView/Sidebar.tsx
index 72ca290..43de73d 100644
--- a/components/ChatView/Sidebar.tsx
+++ b/components/ChatView/Sidebar.tsx
@@ -4,6 +4,7 @@ import { User } from "../../types";
 const Sidebar = () => {
   const userStore = useUserStore();
   const chatStore = useChatStore();
+  const currentChatUserId = chatStore.currentChat.userId;
 
   const handleAssistantClick = (user: User) => {
     for (const chat of chatStore.chatList) {
@@ -16,13 +17,19 @@ const Sidebar = () => {
   };
 
   return (
-    <div className="w-full border-r p-2">
-      <h2>Assistant list</h2>
-      <div>
+    <div className="w-52 lg:w-64 h-full transition-all shrink-0 border-r p-2 sticky top-0">
+      <h2 className="pt-2 pb-4 w-full text-center">Assistant list</h2>
+      <div className="w-full mt-2 flex flex-col justify-start items-start">
         {userStore.assistantList.map((assistant) => (
-          <p onClick={() => handleAssistantClick(assistant)} key={assistant.id}>
+          <div
+            className={`w-full py-2 px-3 rounded-md mb-2 cursor-pointer hover:opacity-80 hover:bg-gray-100 ${
+              currentChatUserId === assistant.id && "shadow bg-gray-100 font-medium"
+            }`}
+            onClick={() => handleAssistantClick(assistant)}
+            key={assistant.id}
+          >
             {assistant.name}
-          </p>
+          </div>
         ))}
       </div>
     </div>
diff --git a/components/ChatView/index.tsx b/components/ChatView/index.tsx
index 74e96e9..140d3a1 100644
--- a/components/ChatView/index.tsx
+++ b/components/ChatView/index.tsx
@@ -1,7 +1,7 @@
 import { useChatStore, useMessageStore, useUserStore } from "../../store";
 import MessageView from "./MessageView";
 import Sidebar from "./Sidebar";
-import Textarea from "./Textarea";
+import MessageTextarea from "./MessageTextarea";
 
 const ChatView = () => {
   const chatStore = useChatStore();
@@ -12,14 +12,16 @@ const ChatView = () => {
   const messageList = messageStore.messageList.filter((message) => message.chatId === currentChat?.id);
 
   return (
-    <div className="w-full max-w-full lg:max-w-3xl border rounded-md grid grid-cols-[192px_1fr]">
+    <div className="relative w-full max-w-full h-full rounded-md flex flex-row justify-start items-start">
       <Sidebar />
-      <main className="w-full">
-        <p className="w-full text-center py-2 border-b">{chatTitle}</p>
-        <div className="py-2">
-          {messageList.length === 0 ? <p>no message</p> : messageList.map((message) => <MessageView key={message.id} message={message} />)}
+      <main className="relative grow w-auto h-full max-h-full flex flex-col justify-start items-start overflow-y-auto bg-gray-100">
+        <p className="sticky top-0 w-full text-center py-4 border-b bg-white">{chatTitle}</p>
+        <div className="p-2 w-full h-auto grow max-w-3xl py-1 px-4 mx-auto">
+          {messageList.length === 0 ? <></> : messageList.map((message) => <MessageView key={message.id} message={message} />)}
+        </div>
+        <div className="sticky bottom-0 w-full max-w-3xl py-1 px-4 mx-auto">
+          <MessageTextarea />
         </div>
-        <Textarea />
       </main>
     </div>
   );
diff --git a/package.json b/package.json
index 9334cf0..ca0ec99 100644
--- a/package.json
+++ b/package.json
@@ -12,15 +12,18 @@
     "csstype": "^3.1.1",
     "highlight.js": "^11.7.0",
     "lucide-react": "^0.125.0",
+    "marked": "^4.2.12",
     "next": "^13.2.4",
     "openai": "^3.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-hot-toast": "^2.4.0",
+    "react-textarea-autosize": "^8.4.0",
     "uuid": "^9.0.0",
     "zustand": "^4.3.6"
   },
   "devDependencies": {
+    "@types/marked": "^4.0.8",
     "@types/node": "^18.11.18",
     "@types/react": "^18.0.26",
     "@types/uuid": "^9.0.1",
diff --git a/pages/_app.tsx b/pages/_app.tsx
index 5a8e3d8..3dcec41 100644
--- a/pages/_app.tsx
+++ b/pages/_app.tsx
@@ -1,7 +1,7 @@
 import { AppProps } from "next/app";
 import React from "react";
 import { Analytics } from "@vercel/analytics/react";
-import "../styles/global.css";
+import "../styles/tailwind.css";
 
 function MyApp({ Component, pageProps }: AppProps) {
   return (
diff --git a/pages/chat.tsx b/pages/chat.tsx
index eb6584e..015c222 100644
--- a/pages/chat.tsx
+++ b/pages/chat.tsx
@@ -12,7 +12,7 @@ const ChatPage: NextPage = () => {
         <link rel="icon" href="/favicon.ico" />
       </Head>
 
-      <main className="w-full min-h-screen flex flex-col items-center justify-center">
+      <main className="w-full h-screen">
         <ChatView />
       </main>
     </div>
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 26f3819..a6af096 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,6 +1,7 @@
 lockfileVersion: 5.4
 
 specifiers:
+  '@types/marked': ^4.0.8
   '@types/node': ^18.11.18
   '@types/react': ^18.0.26
   '@types/uuid': ^9.0.1
@@ -12,12 +13,14 @@ specifiers:
   eslint-config-next: 12.2.3
   highlight.js: ^11.7.0
   lucide-react: ^0.125.0
+  marked: ^4.2.12
   next: ^13.2.4
   openai: ^3.0.0
   postcss: ^8.4.20
   react: ^18.2.0
   react-dom: ^18.2.0
   react-hot-toast: ^2.4.0
+  react-textarea-autosize: ^8.4.0
   tailwindcss: ^3.2.4
   typescript: ^4.9.4
   uuid: ^9.0.0
@@ -29,15 +32,18 @@ dependencies:
   csstype: 3.1.1
   highlight.js: 11.7.0
   lucide-react: 0.125.0_react@18.2.0
+  marked: 4.2.12
   next: 13.2.4_biqbaboplfbrettd7655fr4n2y
   openai: 3.2.1
   react: 18.2.0
   react-dom: 18.2.0_react@18.2.0
   react-hot-toast: 2.4.0_owo25xnefcwdq3zjgtohz6dbju
+  react-textarea-autosize: 8.4.0_pmekkgnqduwlme35zpnqhenc34
   uuid: 9.0.0
   zustand: 4.3.6_react@18.2.0
 
 devDependencies:
+  '@types/marked': 4.0.8
   '@types/node': 18.15.3
   '@types/react': 18.0.28
   '@types/uuid': 9.0.1
@@ -55,7 +61,6 @@ packages:
     engines: {node: '>=6.9.0'}
     dependencies:
       regenerator-runtime: 0.13.11
-    dev: true
 
   /@eslint/eslintrc/1.4.1:
     resolution: {integrity: sha512-XXrH9Uarn0stsyldqDYq8r++mROmWRI1xKMXa640Bb//SY1+ECYX6VzT6Lcx5frD0V30XieqJ0oX9I2Xj5aoMA==}
@@ -251,13 +256,16 @@ packages:
     resolution: {integrity: sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==}
     dev: true
 
+  /@types/marked/4.0.8:
+    resolution: {integrity: sha512-HVNzMT5QlWCOdeuBsgXP8EZzKUf0+AXzN+sLmjvaB3ZlLqO+e4u0uXrdw9ub69wBKFs+c6/pA4r9sy6cCDvImw==}
+    dev: true
+
   /@types/node/18.15.3:
     resolution: {integrity: sha512-p6ua9zBxz5otCmbpb5D3U4B5Nanw6Pk3PPyX05xnxbB/fRv71N7CPmORg7uAD5P70T0xmx1pzAx/FUfa5X+3cw==}
     dev: true
 
   /@types/prop-types/15.7.5:
     resolution: {integrity: sha512-JCB8C6SnDoQf0cNycqd/35A7MjcnK+ZTqE7judS6o7utxUCg6imJg3QK2qzHKszlTjcj2cn+NwMB2i96ubpj7w==}
-    dev: true
 
   /@types/react/18.0.28:
     resolution: {integrity: sha512-RD0ivG1kEztNBdoAK7lekI9M+azSnitIn85h4iOiaLjaTrMjzslhaqCGaI4IyCJ1RljWiLCEu4jyrLLgqxBTew==}
@@ -265,11 +273,9 @@ packages:
       '@types/prop-types': 15.7.5
       '@types/scheduler': 0.16.2
       csstype: 3.1.1
-    dev: true
 
   /@types/scheduler/0.16.2:
     resolution: {integrity: sha512-hppQEBDmlwhFAXKJX2KnWLYu5yMfi91yazPb2l+lbJiwW+wdo1gNeRA+3RgNSO39WYX2euey41KEwnqesU2Jew==}
-    dev: true
 
   /@types/uuid/9.0.1:
     resolution: {integrity: sha512-rFT3ak0/2trgvp4yYZo5iKFEPsET7vKydKF+VRCxlQ9bpheehyAJH89dAkaLEq/j/RZXJIqcgsmPJKUP1Z28HA==}
@@ -1666,6 +1672,12 @@ packages:
       react: 18.2.0
     dev: false
 
+  /marked/4.2.12:
+    resolution: {integrity: sha512-yr8hSKa3Fv4D3jdZmtMMPghgVt6TWbk86WQaWhDloQjRSQhMMYCAro7jP7VDJrjjdV8pxVxMssXS8B8Y5DZ5aw==}
+    engines: {node: '>= 12'}
+    hasBin: true
+    dev: false
+
   /merge2/1.4.1:
     resolution: {integrity: sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==}
     engines: {node: '>= 8'}
@@ -2054,6 +2066,20 @@ packages:
     resolution: {integrity: sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==}
     dev: true
 
+  /react-textarea-autosize/8.4.0_pmekkgnqduwlme35zpnqhenc34:
+    resolution: {integrity: sha512-YrTFaEHLgJsi8sJVYHBzYn+mkP3prGkmP2DKb/tm0t7CLJY5t1Rxix8070LAKb0wby7bl/lf2EeHkuMihMZMwQ==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0
+    dependencies:
+      '@babel/runtime': 7.21.0
+      react: 18.2.0
+      use-composed-ref: 1.3.0_react@18.2.0
+      use-latest: 1.2.1_pmekkgnqduwlme35zpnqhenc34
+    transitivePeerDependencies:
+      - '@types/react'
+    dev: false
+
   /react/18.2.0:
     resolution: {integrity: sha512-/3IjMdb2L9QbBdWiW5e3P2/npwMBaU9mHCSCUzNln0ZCYbcfTsGbTJrU/kGemdH2IWmB2ioZ+zkxtmq6g09fGQ==}
     engines: {node: '>=0.10.0'}
@@ -2076,7 +2102,6 @@ packages:
 
   /regenerator-runtime/0.13.11:
     resolution: {integrity: sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg==}
-    dev: true
 
   /regexp.prototype.flags/1.4.3:
     resolution: {integrity: sha512-fjggEOO3slI6Wvgjwflkc4NFRCTZAu5CnNfBd5qOMYhWdn67nJBBu34/TkD++eeFmd8C9r9jfXJ27+nSiRkSUA==}
@@ -2404,6 +2429,41 @@ packages:
       punycode: 2.3.0
     dev: true
 
+  /use-composed-ref/1.3.0_react@18.2.0:
+    resolution: {integrity: sha512-GLMG0Jc/jiKov/3Ulid1wbv3r54K9HlMW29IWcDFPEqFkSO2nS0MuefWgMJpeHQ9YJeXDL3ZUF+P3jdXlZX/cQ==}
+    peerDependencies:
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0
+    dependencies:
+      react: 18.2.0
+    dev: false
+
+  /use-isomorphic-layout-effect/1.1.2_pmekkgnqduwlme35zpnqhenc34:
+    resolution: {integrity: sha512-49L8yCO3iGT/ZF9QttjwLF/ZD9Iwto5LnH5LmEdk/6cFmXddqi2ulF0edxTwjj+7mqvpVVGQWvbXZdn32wRSHA==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+    dependencies:
+      '@types/react': 18.0.28
+      react: 18.2.0
+    dev: false
+
+  /use-latest/1.2.1_pmekkgnqduwlme35zpnqhenc34:
+    resolution: {integrity: sha512-xA+AVm/Wlg3e2P/JiItTziwS7FK92LWrDB0p+hgXloIMuVCeJJ8v6f0eeHyPZaJrM+usM1FkFfbNCrJGs8A/zw==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+    dependencies:
+      '@types/react': 18.0.28
+      react: 18.2.0
+      use-isomorphic-layout-effect: 1.1.2_pmekkgnqduwlme35zpnqhenc34
+    dev: false
+
   /use-sync-external-store/1.2.0_react@18.2.0:
     resolution: {integrity: sha512-eEgnFxGQ1Ife9bzYs6VLi8/4X6CObHMw9Qr9tPY43iKwsPw8xE8+EFsf/2cFZ5S3esXgpWgtSCtLNS41F+sKPA==}
     peerDependencies:
diff --git a/store/user.ts b/store/user.ts
index 46fcda7..72d1e61 100644
--- a/store/user.ts
+++ b/store/user.ts
@@ -9,6 +9,13 @@ const assistantList: User[] = [
     avatar: "",
     role: UserRole.Assistant,
   },
+  {
+    id: "assistant-dba",
+    name: "Great DBA Bot",
+    description: "",
+    avatar: "",
+    role: UserRole.Assistant,
+  },
 ];
 
 const localUser: User = {
diff --git a/styles/global.css b/styles/global.css
deleted file mode 100644
index b5c61c9..0000000
--- a/styles/global.css
+++ /dev/null
@@ -1,3 +0,0 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
diff --git a/styles/tailwind.css b/styles/tailwind.css
new file mode 100644
index 0000000..f336a04
--- /dev/null
+++ b/styles/tailwind.css
@@ -0,0 +1,15 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@layer utilities {
+  .hide-scrollbar {
+    -ms-overflow-style: none; /* IE and Edge */
+    scrollbar-width: none; /* Firefox */
+  }
+
+  /* Chrome, Safari and Opera */
+  .hide-scrollbar::-webkit-scrollbar {
+    display: none;
+  }
+}
diff --git a/utils/openai-api.ts b/utils/openai-api.ts
index 97c21b8..3a54832 100644
--- a/utils/openai-api.ts
+++ b/utils/openai-api.ts
@@ -1,8 +1,4 @@
-import { ChatCompletionResponseMessage, Configuration, OpenAIApi } from "openai";
-
-export interface ChatCompletionResponse {
-  message: ChatCompletionResponseMessage;
-}
+import { Configuration, OpenAIApi } from "openai";
 
 const configuration = new Configuration({
   apiKey: process.env.OPENAI_API_KEY,