层样式遮掩层?div idshadowDiv stylebackground-color:#15428B width: 100% height: 100%positio
层样式
遮掩层
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<div id="shadowDiv" style="background-color:#15428B; width: 100%; height: 100%;position:absolute;left: 0px; top: 0px;display: block;filter:alpha(opacity=0,finishopacity=50,style=2,startx=0,starty=0,finishx=500,finishy=85);">
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