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<html>
<head></head>
<body>
<select id="dl" style="text-align:center;">
<option>aaa</option>
<option>bbb</option>
<option>ccc</option>
</select>
</body>
</html>
<html>
<head></head>
<body style="text-align:center;">
<select id="dl" >
<option>AAA</option>
<option>BBB</option>
<option>CCC</option>
</select>
<br/>
<table border="1px" rules="all" style="border-collapse:collapse;margin-left:auto;" >
<tr>
<td>AAA</td>
<td>BBB</td>
<td>CCC</td>
</tr>
<tr>
<td>a1</td>
<td>b1</td>
<td>c1</td>
</tr>
<tr>
<td>d1</td>
<td>e1</td>
<td>f1</td>
</tr>
</table>
</body>
</html>
<html>
<head></head>
<body style="text-align:center;">
<select id="dl" >
<option>AAA</option>
<option>BBB</option>
<option>CCC</option>
</select>
<br/>
<table border="1px" rules="all" style="border-collapse:collapse;position:absolute;margin-left:auto;" >
<tr>
<td>AAA</td>
<td>BBB</td>
<td>CCC</td>
</tr>
<tr>
<td>a1</td>
<td>b1</td>
<td>c1</td>
</tr>
<tr>
<td>d1</td>
<td>e1</td>
<td>f1</td>
</tr>
</table>
</body>
</html>