this style change close icon to something ugly

web/src/main/webapp/resources/css/style.css

@@ -48,9 +48,6 @@ html,body {
 .ui-widget-header{border:none; background:#A3A3A3;color:#ffffff; font-weight:500; margin:0; padding:0;}
 .ui-widget-header a{color:#F9F7F7;}
 /* Interaction states----------------------------------*/
-.ui-state-default, .ui-widget-content .ui-state-default, .ui-widget-header .ui-state-default{border:none;
-background:#919191; background:-moz-linear-gradient(top,#B0B0B0,#6B6B6B); background:-webkit-gradient(linear,left top,left bottom,from(#B0B0B0),to(#6B6B6B));
-font-weight:normal;color:#ffffff;}
 .ui-state-default a, .ui-state-default a:link, .ui-state-default a:visited{color:#ffffff;text-decoration:none;}
 .ui-state-hover a, .ui-state-hover a:hover{color:#ffffff;text-decoration:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none;}
 .ui-state-active, .ui-widget-content .ui-state-active, .ui-widget-header .ui-state-active{border:none;background:#0098CA; background:-moz-linear-gradient(top,#2DCAFF,#0098CA); background:-webkit-gradient(linear,left top,left bottom,from(#2DCAFF),to(#0098CA));