.tabs li.impact a span em{background-image: none;filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='css/images/impact.png', sizingMethod='image');}
.tabs li.cause a span em{background-image: none;filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='css/images/cause.png', sizingMethod='image');}
.tabs li.first a span em{background-image: none;filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='css/images/water.png', sizingMethod='image');}
.tabs li.last a span em{background-image: none;filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='css/images/involved.png', sizingMethod='image');}