.Opa55, img.logoPie {filter: alpha(opacity=55); -moz-opacity: .55; opacity: .55; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity55)';}
.Opa65, div.CSombra {filter: alpha(opacity=65); -moz-opacity: .65; opacity: .65; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity65)';}
.Opa75 {filter: alpha(opacity=75); -moz-opacity: .75; opacity: .75; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity75)';}
.Opa85 {filter: alpha(opacity=85); -moz-opacity: .85; opacity: .85; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity85)';}
.Opa95 {filter: alpha(opacity=95); -moz-opacity: .95; opacity: .95; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity95)';}
.Opa100, .Opa:hover, img.logoPie:hover  {filter: alpha(opacity=100); -moz-opacity: 1; opacity: 1; -ms-filter: 'progidDXImageTransform.Microsoft.Alpha(Opacity100)';}