diff --git a/src/App.js b/src/App.js
index e358583..57996ca 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,11 +1,24 @@
 import React from 'react';
 import logo from './logo.svg';
 import './App.css';
+import TodoList from './containers/TodoList/TodoList';
+import TodoDetail from './components/TodoDetail/TodoDetail';
+import NewTodo from './containers/TodoList/NewTodo/NewTodo';
+import { BrowserRouter, Route, Redirect, Switch } from 'react-router-dom';
 
 function App() {
   return (
-    <div className="App">
-    </div>
+    <BrowserRouter>
+      <div className='App'>
+        <Switch>
+          <Route path='/todos' exact render={() => <TodoList title="My TODOs!" />} />
+          <Route path='/todos/:id' exact component={TodoDetail}></Route>
+          <Route path='/new-todo' exact component={NewTodo} />
+          <Redirect exact from='/' to='/todos'></Redirect>
+          <Route render={() => <h1>Not Found</h1>}></Route>
+        </Switch>
+      </div>
+    </BrowserRouter >
   );
 }
 
diff --git a/src/components/Todo/Todo.css b/src/components/Todo/Todo.css
new file mode 100644
index 0000000..fdac7ad
--- /dev/null
+++ b/src/components/Todo/Todo.css
@@ -0,0 +1,31 @@
+.Todo {
+    border-top: 1px solid #f1f3f5;
+    padding: 1rem;
+    display: flex;
+    align-items: center;
+    transition: all 0.15s;
+}
+
+.Todo .text {
+    flex: 1;
+    text-align: left;
+    word-break: break-all;
+    cursor: pointer;
+}
+
+.Todo .text:hover {
+    color: orange;
+}
+
+.Todo .done {
+    text-decoration: line-through;
+    color: #adb5bd;
+}
+
+.Todo .done-mark {
+    font-size: 1.5rem;
+    line-height: 1rem;
+    margin-left: 1rem;
+    color: orange;
+    font-weight: 800;
+}
diff --git a/src/components/Todo/Todo.js b/src/components/Todo/Todo.js
new file mode 100644
index 0000000..7bf8016
--- /dev/null
+++ b/src/components/Todo/Todo.js
@@ -0,0 +1,14 @@
+import React from 'react';
+import "./Todo.css"
+
+const Todo = props => {
+    return (
+        <div className='Todo'>
+            <div className={`text ${props.done && 'done'}`} onClick={props.clicked}>
+                {props.title}
+            </div>
+            {props.done && <div className='done-mark'>&#x2713;</div>}
+        </div>
+    );
+}
+export default Todo;
\ No newline at end of file
diff --git a/src/components/TodoDetail/TodoDetail.css b/src/components/TodoDetail/TodoDetail.css
new file mode 100644
index 0000000..d343aac
--- /dev/null
+++ b/src/components/TodoDetail/TodoDetail.css
@@ -0,0 +1,15 @@
+.TodoDetail .row {
+    display: flex;
+    padding: 20px;
+    height: 30px;
+    text-align: left;
+}
+
+.TodoDetail .left {
+    font-weight: bold;
+    flex: 25%;
+}
+
+.TodoDetail .right {
+    flex: 75%;
+}
diff --git a/src/components/TodoDetail/TodoDetail.js b/src/components/TodoDetail/TodoDetail.js
new file mode 100644
index 0000000..c886936
--- /dev/null
+++ b/src/components/TodoDetail/TodoDetail.js
@@ -0,0 +1,25 @@
+import React from 'react';
+import './TodoDetail.css';
+const TodoDetail = (props) => {
+    return (
+        <div className="TodoDetail">
+            <div className="row">
+                <div className="left">
+                    Name:
+                </div>
+                <div className="right">
+                    {props.title}
+                </div>
+            </div>
+            <div className="row">
+                <div className="left">
+                    Content:
+                </div>
+                <div className="right">
+                    {props.content}
+                </div>
+            </div>
+        </div>
+    );
+};
+export default TodoDetail;
\ No newline at end of file
diff --git a/src/containers/TodoList/NewTodo/NewTodo.css b/src/containers/TodoList/NewTodo/NewTodo.css
new file mode 100644
index 0000000..0967d20
--- /dev/null
+++ b/src/containers/TodoList/NewTodo/NewTodo.css
@@ -0,0 +1,41 @@
+.NewTodo {
+    width: 80%;
+    margin: 20px auto;
+    border: 1px solid #eee;
+    box-shadow: 0 2px 3px #ccc;
+    text-align: center;
+}
+
+.NewTodo label {
+    display: block;
+    margin: 10px auto;
+    text-align: center;
+    font-weight: bold;
+}
+
+.NewTodo input,
+.NewTodo textarea {
+    display: block;
+    width: 80%;
+    box-sizing: border-box;
+    border: 1px solid black;
+    outline: none;
+    font: inherit;
+    margin: auto;
+}
+
+.NewTodo button {
+    margin: 5px 0;
+    padding: 10px;
+    font: inherit;
+    border: 1px solid #fa923f;
+    background-color: transparent;
+    color: #fa923f;
+    cursor: pointer;
+}
+
+.NewTodo button:active,
+.NewTodo button:hover {
+    color: white;
+    background-color: #fa923f;
+}
diff --git a/src/containers/TodoList/NewTodo/NewTodo.js b/src/containers/TodoList/NewTodo/NewTodo.js
new file mode 100644
index 0000000..e8e2458
--- /dev/null
+++ b/src/containers/TodoList/NewTodo/NewTodo.js
@@ -0,0 +1,45 @@
+import React, {Component} from 'react';
+import './NewTodo.css';
+import { Redirect } from 'react-router-dom';
+
+class NewTodo extends Component {
+    state = {
+        title: '',
+        content: '',
+        submitted: false
+    }
+
+    postTodoHandler = () => {
+        const data =
+            { title: this.state.title, content: this.state.content };
+        alert('Submitted\n' + data.title + '\n' + data.content);
+        this.setState({ submitted: true });
+        this.props.history.push('/todos');
+    }
+
+    render() {
+        if (this.state.submitted) {
+            return <Redirect to='/todos' />
+        }
+
+        return (
+            <div className="NewTodo">
+                {Redirect}
+                <h1>Add a Todo</h1>
+                <label>Title</label>
+                <input
+                    type="text"
+                    value={this.state.title}
+                    onChange={(event) => this.setState({title: event.target.value})}/>
+                <label>Content</label>
+                <textarea
+                    rows="4"
+                    type="text"
+                    value={this.state.content}
+                    onChange={(event) => this.setState({content: event.target.value})}/>
+                <button onClick={() => this.postTodoHandler()}>Submit</button>
+            </div>
+        );
+    }
+};
+export default NewTodo;
\ No newline at end of file
diff --git a/src/containers/TodoList/TodoList.css b/src/containers/TodoList/TodoList.css
new file mode 100644
index 0000000..6038cb5
--- /dev/null
+++ b/src/containers/TodoList/TodoList.css
@@ -0,0 +1,16 @@
+.TodoList {
+    background: white;
+    width: 512px;
+    box-shadow: 0 3px 9px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
+    /* 그림자 */
+    margin: 4rem auto auto;
+}
+
+.TodoList .title {
+    padding: 2rem;
+    font-size: 2.5rem;
+    text-align: center;
+    font-weight: 500;
+    background: orange;
+    color: black;
+}
diff --git a/src/containers/TodoList/TodoList.js b/src/containers/TodoList/TodoList.js
new file mode 100644
index 0000000..7fa0081
--- /dev/null
+++ b/src/containers/TodoList/TodoList.js
@@ -0,0 +1,51 @@
+import React, { Component } from 'react';
+import TodoDetail from '../../components/TodoDetail/TodoDetail'
+import Todo from '../../components/Todo/Todo';
+//import NewTodo from './NewTodo/NewTodo'
+import { NavLink } from 'react-router-dom';
+import "./TodoList.css"
+
+class TodoList extends Component {
+
+    state = {
+        todos: [
+            { id: 1, title: 'SWPP', content: 'take swpp class', done: true},
+            { id: 2, title: 'Movie', content: 'watch movie', done: false },
+            { id: 3, title: 'Dinner', content: 'eat dinner', done: false },
+        ],
+        selectedTodo: null,
+    }
+
+    clickTodoHandler = td => {
+        if (this.state.selectedTodo === td) {
+            // BAD: this.state.selectedTodo = null; it won't trigger rendering.
+            this.setState({ selectedTodo: null });
+        } else {
+            this.setState({ selectedTodo: td });
+        }
+    }
+
+    render() {
+        const todos = this.state.todos.map((td) => {
+            return (<Todo key={td.id} title={td.title}
+                done={td.done} clicked={() => this.clickTodoHandler(td)} />);
+        });
+
+        let todoDetail = null;
+        if (this.state.selectedTodo) {
+            todoDetail = <TodoDetail
+                title={this.state.selectedTodo.title}
+                content={this.state.selectedTodo.content} />
+        }
+
+        return (
+            <div className='TodoList'>
+                <div className='title'>{this.props.title}</div>
+                <div className='todos'>{todos}</div>
+                {todoDetail}
+                <NavLink to="/new-todo" exact>New Todo</NavLink>
+            </div>
+        );
+    }
+}
+export default TodoList;
\ No newline at end of file