[필터 효과] 이미지의 투명도를 조절 알파 필터

<table align="center" border="0" cellpadding="5" cellspacing="0">
	<tr>
	<td align="center"><img src="/images/helper/smp_400_01.jpg"></td>
	<td align="center"><img src="/images/helper/smp_400_01.jpg" style="filter:alpha(opacity=10)"></td>
	</tr>
	<tr>
	<td align="center">원본</td>
	<td align="center">filter:alpha(opacity=10)</td>
	</tr>

	<tr>
	<td align="center"><img src="/images/helper/smp_400_01.jpg" style="filter:alpha(opacity=40)"></td>
	<td align="center"><img src="/images/helper/smp_400_01.jpg" style="filter:alpha(opacity=70)"></td>
	</tr>
	<tr>
	<td align="center">filter:alpha(opacity=40)</td>
	<td align="center">filter:alpha(opacity=70)</td>
	</tr>
</table>