fix on dialog css

web/src/main/webapp/index.xhtml

@@ -23,6 +23,8 @@
 
 
 	<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.13/css/jquery.dataTables.min.css"/>	
+	<link rel="stylesheet" type="text/css" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css"/>
+	
 	<link rel="shortcut icon" href="./resources/images/favicon.png" type="image/png" />
 
 	<h:outputScript library="js" name="minerva.js"  />

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

@@ -330,7 +330,6 @@ font-weight:normal;color:#ffffff;}
 .ui-corner-all{-moz-border-radius:0px !important;-webkit-border-radius:0px !important;border-radius:0px !important; border-top:none; border-left:none;border-right:none; border-bottom:1px solid #FFFFFF;  padding:0; margin:0;}
 
 .ui-tabs-nav.ui-corner-all {border-bottom:none !important;}
-.ui-dialog-titlebar-close.ui-corner-all {border-bottom:none !important;}
 
 /* Overlays */
 .ui-widget-overlay{background:#aaaaaa url("#{request.contextPath}/javax.faces.resource/images/ui-bg_highlight-hard_40_aaaaaa_1x100.png.xhtml?ln=primefaces-home") 50% top repeat-x;opacity:.30;filter:Alpha(Opacity=30);}
@@ -574,9 +573,6 @@ ui-overlay-visible *{visibility:visible !important;}
 .ui-dialog .ui-dialog-buttonpane button{margin:.5em .4em .5em 0;cursor:pointer;}
 .ui-dialog .ui-resizable-se{width:14px;height:14px;right:3px;bottom:3px;}
 .ui-draggable .ui-dialog-titlebar{cursor:move;}
-.ui-dialog .ui-dialog-titlebar-close, .ui-dialog .ui-dialog-titlebar-minimize,.ui-dialog .ui-dialog-titlebar-maximize{float:right;margin:0px;top:0px;padding:5px;cursor:pointer;}
-.ui-dialog .ui-dialog-titlebar-close span, .ui-dialog .ui-dialog-titlebar-minimize span, .ui-dialog .ui-dialog-titlebar-maximize span{display:block;margin:0px;}
-.ui-dialog .ui-dialog-titlebar-close:hover, .ui-dialog .ui-dialog-titlebar-close:focus, .ui-dialog .ui-dialog-titlebar-minimize:hover, .ui-dialog .ui-dialog-titlebar-minimize:focus, .ui-dialog .ui-dialog-titlebar-maximize:hover, .ui-dialog .ui-dialog-titlebar-maximize:focus{padding:5px;}
 .ui-dialog-footer{padding:.4em 1em;border-width:1px 0 0 0;text-align:left;}
 .ui-dialog-docking-zone{position:fixed;bottom:0;left:0;}
 .ui-dialog-minimizing{border:2px dotted gray;}