import React, {
 Component
} from 'react';

import './App.css';

class App extends Component {
 render() {

  return (
   <div className="App">
    <div className="title">4*4表格</div>
    <table>
     <tbody>
      <tr><td>00</td><td>01</td><td>02</td><td>03</td></tr>
      <tr><td>10</td><td>11</td><td>12</td><td>13</td></tr>
      <tr><td>20</td><td>21</td><td>22</td><td>23</td></tr>
      <tr><td>30</td><td>31</td><td>32</td><td>33</td></tr>
     </tbody>
    </table>
    <hr/>
    <div className="title">跨列写法(colSpan="2")</div>
    <table>
     <tbody>
      <tr><td>00</td><td colSpan="2">01</td><td>03</td></tr>
      <tr><td>10</td><td>11</td><td>12</td><td>13</td></tr>
      <tr><td>20</td><td>21</td><td>22</td><td>23</td></tr>
      <tr><td>30</td><td>31</td><td>32</td><td>33</td></tr>
     </tbody>
    </table>
    <hr/>
    <div className="title">跨行写法(rowSpan="2")</div>
    <table>
     <tbody>
      <tr><td>00</td><td rowSpan="2">01</td><td>02</td><td>03</td></tr>
      <tr><td>10</td><td>12</td><td>13</td></tr>
      <tr><td>20</td><td>21</td><td>22</td><td>23</td></tr>
      <tr><td>30</td><td>31</td><td>32</td><td>33</td></tr>
     </tbody>
    </table>
    <hr/>

   </div>
  );
 }
}

export default App;

.App {
 text-align: center;
}

td {
 border: 1px solid #AB3319;
 width: 30px;
 height: 30px;
}

.title {
 color: #444444;
 font-size: 20px;
 margin: 20px;
}

table {
 margin: 20px auto;
 border-collapse: collapse;
}