CSS透明度
Temperature: 0 °C
標準: opacity:0~1 (Firefox 用此即可)
IE7: filter:alpha(opacity=0~100);
Mozilla 1.0~1.6: -moz-opacity: 0~1
透明度完整寫法
filter:alpa(opacity=80); /* old IE */
filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=80,FinishOpacity=15, Style=3, StartX=0, FinishX=100, StartY=0,FinishY=16); /*supported by current IE*/
-moz-opacity:0.7; /* Moz + FF */
opacity:0.7; /* 支持新版瀏覽器 */
