.topnav {
  overflow: hidden;
  /*background-color: #333;*/
   background-color: #FFFFFF;
  /*margin: 0 18px;*/
  /*height:50px;*/
  border:1px solid #ff5100;
}

.topnav a {
  float: left;
  display: block;
  color: #002235;
  text-align: center;
  padding: 14px 18px;
  text-decoration: none;
  font-size: 18px;
}

.topnav a:hover {
  background-color: #ff5100;
  color: #FFFFFF;
}

.active, a.active{
  background-color: #3d87d9;
  color: #FFFFFF;
}

.topnav .icon {
  display: none;
}

.lines{ 
    border-bottom: 12px double black; 
    border-top: 4px solid black; 
    content:"";
    height: 4px; 
    width:30px;
}

@media screen and (max-width: 788px) {
  /*.topnav a:not(:first-child) {display: none;}*/
  .topnav a {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 788px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}