
<!DOCTYPE html>
<html>
<head>
<style>
 
table {width:200px; height:200px;text-align:center;}
table, td{border:1px solid black;}
td:empty{background-color:yellow;}
 

</style>
</head>

<body>

<p>Q. 빈칸을 채우시오</p>

<table>
<tr>
<td>1</td>
<td>9</td>
<td>3</td>
</tr>
<tr>
<td></td>
<td>2</td>
<td>8</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
</tr>
</table>


<p>A._________  </p>

</body>
</html>