Simple CRUD using MOCK UP API in React JS

App.css

body,
html {
  background-color: #ccc;
  margin: auto;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  font-size: 15px;
}
.wrapper {
  width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
}
.header {
  background-color: #3F72AF;
  padding: 20px;
  border-radius: 10px 10px 0px 0px;
}
.data-pengguna {
  background-color: #FFFFFF;
  border-radius: 0px 0px 10px 10px;
  padding: 20px;
}
.header h3 {
  color: white;
  margin: 0px 0px 20px;
  font-size: 30px;
}
.data-pengguna h3 {
  margin: 0px 0px 20px;
  font-size: 30px;
}
@media only screen and (max-width: 800px) {
  .wrapper {
    width: 80%;
  }
}
/** form */

.input-box {
  display: block;
  width: 100%;
}
.input-box > input {
  width: 100%;
  background-color: #dedede;
  border-radius: 10px;
  padding: 10px 100px 10px 20px;
  line-height: 1;
  box-sizing: border-box;
  outline: none;
  border: none;
  font-size: 16px;
  margin-bottom: 10px;
}
.input-box > button {
  border: 0;
  background: #112d4e;
  color: #fff;
  font-weight: bold;
  outline: none;
  margin: 0;
  border-radius: 10px;
  cursor: pointer;
  width: 100%;
  font-size: 16px;
  padding: 10px;
}

/** list */
.data-pengguna > ul {
  padding: 0px;
  margin: 0px;
}
.data-pengguna > ul > li {
  padding: 10px 0px 10px 0px;
  list-style: none;
  display: flex;
  border-bottom: 1px solid #ccc;
  justify-content: space-between;
}
.data-pengguna > ul > li > div > a {
  text-decoration: none;
}
a.edit {
  color: rgb(143, 143, 45);
}
a.delete {
  color: red;
}
.wrapper > ul > li:last-child {
  border-bottom: none;
}
.email {
  color: #adadad;
}

App.jsx

import React from 'react'
import './App.css'

function App() {
  return (
    <div className='wrapper'>
      <div className='header'>
        <h3>Tambah Pengguna</h3>
        <form className='input-box' type='submit'>
          <input type='text' placeholder='Nama' />
          <input type='email' placeholder='Email' />
          <button type='submit'>Simpan</button>
        </form>
      </div>
      <div className='data-pengguna'>
      <h3>Data Pengguna</h3>
          <ul>
            <li>
              <div>
                Nama Pengguna <span className='email'>(email@gmail.com)</span>
              </div>
              <div>
                <a href='#' className='edit'>Edit</a> - <a href='#' className='delete'>Delete</a>
              </div>
            </li>
          </ul>
      </div>
     </div>
  )
}

export default App