.header {
    padding-top: 1rem;
    padding-bottom: 1rem;
    text-align: center;
    background-color: #F76902;
    border-top-right-radius: 30%;
    width: 100%;
    height: 5rem;
  }

 .header h2{
   color: white;
   margin-top: 1rem;
   font-size: 24px; 
 }
  
 .header img {
  margin-top: 1rem;
  padding-right: 1rem;
  height: 2rem;
  float:right;
}

.topnav {
  position: sticky;
  top: -1px;
  overflow: hidden;
  background-color: #333;
  box-shadow: 0 6px 10px 0 rgba(0,0,0,.2);
  text-align: center;
}

.topnav a {
  display: inline-block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;

}

.topnav .icon {
  display: none;
}


.topnav a:hover{
  background-color: #555;
  color: white;
}


@media screen and (max-width: 600px) {
  .topnav a:not(:first-child){
    display: none;
  }
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .topnav.responsive {position: sticky;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
  .header img {
    margin-top: 1rem;
    padding-right: .5rem;
    height: 1.5rem;
    float:right;
  }
  
}