[Web] few style changes

data/web/css/build/013-datatables.css

@@ -8,9 +8,6 @@
 .dtr-details {
     width: 100%;
 }
-.table-striped>tbody>tr:nth-of-type(odd) {
-    background-color: #F2F2F2;
-}
 td.child>ul>li {
     display: flex;
 }

data/web/css/build/014-mailcow.css

@@ -33,6 +33,13 @@
        url('/fonts/noto-sans-v12-latin_greek_cyrillic-700italic.woff2') format('woff2'),
        url('/fonts/noto-sans-v12-latin_greek_cyrillic-700italic.woff') format('woff');
 }
+
+body {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  background-color: #fbfbfb;
+}
 #maxmsgsize { min-width: 80px; }
 #slider1 .slider-selection {
 	background: #FFD700;
@@ -78,6 +85,19 @@
 .navbar-fixed-top .navbar-collapse {
   max-height: 1000px
 }
+.nav-tabs .nav-link, .nav-tabs .nav-link.disabled, .nav-tabs .nav-link.disabled:hover, .nav-tabs .nav-link.disabled:focus {
+  border-color: #dfdfdf;
+}
+.nav-tabs .nav-link.active, .nav-tabs .nav-item.show .nav-link {
+  border-color: #dfdfdf;
+  border-bottom: 1px solid #ffffff;
+}
+.nav-tabs .nav-link:hover, .nav-tabs .nav-link:focus {
+  border-color: #dfdfdf;
+}
+.nav-tabs {
+  border-bottom: 1px solid #dfdfdf;
+}
 .bi {
   display: inline-block;
   font-size: 12pt;