#nav {
width:100%;height:auto;  
}

.nav {
  display:inline;
  float:left;
  border:0 white none;
  padding-bottom:10px;
  border-bottom: 1px solid silver;
 }
.nav_button {
  float: left;
  display: inline;
  font-size: 16pt;
  color:#384758;
  text-align: center;
  background-color: none;
  padding:0px;
  /*border-style: none;
  border-width: 0px;*/
  margin-right: 17px;
}
.nav_button a {
  display: block;
  text-decoration: none;
  color: inherit;
}
.nav_button a.hover {
  text-decoration:none;
  color:inherit;
}
.nav_selected {
  /*color: #004A94 !important;
  background-color: #B3CBFF !important;*/
  border-bottom: 6px silver solid;
}