React:Components Exemple

import React, { Component } from 'react';
import Nav from './Nav';
import  './styles.css';
import Friends from './Friends';
import ListPost from './ListPost';
import AddPost from './AddPost';

class App extends Component {
  constructor(props) {
    super(props);
  }
  render() {
    return (
<div id="app">
  <Nav></Nav>
  <Friends></Friends>
  <ListPost></ListPost>
  <AddPost></AddPost>
</div>)
  }
export default App;

import React, { Component } from 'react';

class Nav extends Component {
  constructor(props) {
    super(props);
  }
  render() {

return(<div class="container">
  <nav>
    <ul>
      <li>Home</li>
      <li>Friends</li>
      <li>Notifications</li>
      <li>Messenger</li>
    </ul>
  </nav>
</div>)
  }
}
export default Nav;

import React, { Component } from 'react';

class Friends extends Component {
  constructor(props) {
    super(props);
  }
  render() {
return(<div class="container friends">
  <h2>Friends</h2>
  <ul>
    <li>Friend 1</li>
    <li>Friend 2</li>
    <li>Friend 3</li>
  </ul>
</div>

)
}
export default Friends;

import React, { Component } from 'react';

class ListPost extends Component {
  constructor(props) {
    super(props);
  }
  render() {
return(
<div class="container post-list">
  <h2>Posts</h2>
  <div class="post">
    <p>User 1: This is a post.</p>
  </div>
  <div class="post">
    <p>User 2: Another post here.</p>
  </div>
</div>


)
}
export default ListPost;

import React, { Component } from 'react';

class AddPost extends Component {
  constructor(props) {
    super(props);
  }
  render() {
return(

<div class="container add-post">
  <h2>Add Post</h2>
  <form>
    <textarea placeholder="What's on your mind?"></textarea>
    <button type="submit">Post</button>
  </form>
</div>



)
}
export default AddPost;

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  width: 800px;
  margin: 0 auto;
}

nav {
  background-color: #4267B2;
  color: #fff;
  padding: 10px;
}

nav ul {
  list-style-type: none;
  display: flex;
  justify-content: space-around;
}

nav li {
  cursor: pointer;
}

.friends {
  margin-top: 20px;
}

.post-list {
  margin-top: 20px;
}

.post {
  border: 1px solid #ddd;
  padding: 10px;
  margin-bottom: 10px;
}

.add-post {
  margin-top: 20px;
}

textarea {
  width: 100%;
  padding: 10px;
  box-sizing: border-box;
  margin-bottom: 10px;
}

button {
  background-color: #4267B2;
  color: #fff;
  padding: 10px;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: #405D9D;
}