SOURCE

<h1>日月行</h1>
<h2>日月行</h2>
<h3>日月行</h3>
<p>流行美</p>
<table >
    <tr>
        <td>课程</td>
        <td>班级</td>
    </tr>
    <tr>
        <td>数学</td>
        <td>二班</td>
    </tr>
    <tr>
      <td>英语</td>
      <td>三班</td>
</table>

h2 {
  font-size:30px
}
table {
  border:solid ;
  border-width:1px,2px,1px,2px;
  border-color:blue;
}
tr,td {
  border:solid;
  border-width:1px 0px 0px 0px;
  border-color:pink;
  background-color:yellow;
}