.sidenav {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
  color:white;
  text-align:center;
}

.sidenav a {
  padding: 8px 0px 8px 0px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidenav a:hover {
  color: #f1f1f1;
}

.sidenav .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}

.sidenav img {width:100%;}






.header {
  background-color: #f1f1f1;
  padding: 30px;
  text-align: center;
}

#navbar {
  position: sticky;
  top: 0;
  overflow: hidden;
  background-color: #333;
}
#linkgroup {
width:390px;
margin:auto;}
#navbar a {
  text-align:center;
  display: inline-block;
  color: #f2f2f2;
  text-align: center;
  padding: 4px 4px;
  text-decoration: none;
  font-size: 13px;
}

#navbar a:hover {
  background-color: #ddd;
  color: black;
}

#navbar a.active {
  background-color: #04AA6D;
  color: white;
}