SOURCE

<h1>h1</h1>
<a href>百度</a>
  <h2>表格</h2>
<table>
       <tr>
         <td >row 1,cell 1</td>
          <td  >row 1,cell 2</td>
       </tr>
         <tr>
         <td>row 2,cell 1</td>
          <td>row 2,cell 2</td>
       </tr>
</table>

table{
  border :solid red;
  border-width:2px 2px 2px 2px;
  border-style:dotted;

}
td{
  border:solid red;
  border-width:0px 2px 2px2px; 
    border-style:double;
   
}