body {
  font-family: sans-serif;
}

/* Make content area fill the entire browser window */
html,
.fullscreen {
  display: flex;
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}

/* Center the content in the browser window */
.container {
  width: 100%;
  text-align: center;
}

.title {
  font-size: 2rem;
}

.qrCode {  
  text-align: center;  
  margin: 10pt auto 20pt;
  padding: 10pt;
}

.img {
  text-align: center;
  align-self: center;
}

/* menu styling, based on code from https://www.w3schools.com/Css/css_navbar.asp */

ul.menu {
  list-style-type: none;
  margin: 0;
  padding: 0; 
  overflow: hidden;
  background-color: #333;
  border: 1px solid #555
}

ul.menu li {
  float: left;
  text-align: center;
  border-right: 1px solid #555;
}

ul.menu li a, .menu-dropbtn {
  display: inline-block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

ul.menu li a:hover, .menu-dropdown:hover .menu-dropbtn {
  background-color: red;
}

li.menu-dropdown {
  display: inline-block;  
}

ul.menu li:last-child {
  border-right: none;
}

.menu-dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

ul.menu div.menu-dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

.menu-dropdown-content a:hover {background-color: #f1f1f1;}

.menu-dropdown:hover .menu-dropdown-content {
  display: block;
}