Removed ms-filter from stylesheets (#2733)

Author: luigifab

skin/adminhtml/default/default/boxes.css

@@ -471,7 +471,7 @@ button.success:active { background:url(images/btn_gr_on.gif) repeat-x 0 0 #3fa05
 
 button.disabled,
 button.disabled:hover,
-button.disabled:active { border-color:#777 #505050 #505050 #777; background:#919191 url(images/btn_bg-disabled.gif) 0 0 repeat-x; color:#fff; cursor:default; opacity:.8; -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=20)"; }
+button.disabled:active { border-color:#777 #505050 #505050 #777; background:#919191 url(images/btn_bg-disabled.gif) 0 0 repeat-x; color:#fff; cursor:default; opacity:.8; }
 button.add.disabled span { background-image:url(images/add_btn_icon-disabled.gif); }
 
 button.loading > span { padding-left:20px; background-image: url(images/btn_loading-icon.gif) !important;}
@@ -547,7 +547,7 @@ td.divider              { font-size:1px; line-height:0; }
 .scrollContent              { position:absolute; left:0; top:0; }
 
 /* Horizontal scroll */
-.hor-scroll                 { width:100%; overflow:auto; padding-bottom:4px; margin-bottom:-4px; } /* IE has personal style, see iestyles.css */
+.hor-scroll                 { width:100%; overflow:auto; padding-bottom:4px; margin-bottom:-4px; }
 
 
 /**/
@@ -654,7 +654,7 @@ div.autocomplete ul li { padding:.5em .7em; min-height:32px; cursor:pointer; tex
 .left-col-block { width:200px; }
 
 /* Floating Content Header */ /* Used to make action buttons always within reach */
-.content-header-floating { display:none; position:fixed; left:0; top:0; width:100%; border-bottom:solid 1px #988753; z-index:100; background:#fdfaa4; -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=85)"/* IE8 */; opacity:.85; }
+.content-header-floating { display:none; position:fixed; left:0; top:0; width:100%; border-bottom:solid 1px #988753; z-index:100; background:#fdfaa4; opacity:.85; }
 .content-header-floating .content-header { padding:6px 8px 4px 8px; margin-bottom:0; border:0; }
 .content-header-floating td     { padding-right:20px; }
 .content-header-floating button { margin-top:3px; }