#primary_nav {
font-size: 12px;
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
text-transform: none;
float: left
}
#community_app_menu>li {
margin: 0px 4px 0 0
}
#community_app_menu>li>a {
color: #9a9a9a;
display: block;
outline: none;
padding: 0px 15px;
line-height: 34px;
height: 34px;
position: relative
}
#community_app_menu>li>a:hover,
#community_app_menu>li>a.menu_active {
background: url("https://www.csforce.ro/forum/public/style_images/BuBu/trans30.png") repeat;
background: rgba(0, 0, 0, 0.3);
-webkit-box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
-moz-box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
color: #fff
}
#community_app_menu>li.active a {
background: url("https://www.csforce.ro/forum/public/style_images/BuBu/trans50.png") repeat;
background: rgba(0, 0, 0, 0.5);
-webkit-box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
-moz-box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
box-shadow: inset rgba(0, 0, 0, 0.8) 0px 1px 5px, rgba(255, 255, 255, 0.03) 0px 0px 0px 1px, rgba(255, 255, 255, 0.1) 0px 1px 0px;
color: #fff;
position: relative
}
Trebuie sa mai faci si tu cateva modificari.