/* hide the checkbox and the label */
  
  input#responsive-nav,
  label.responsive-nav-label {
    display: none;
  }
  
  /* declarations for the not-responsove-menu */
  
  nav {
    float: left;
    width: 100%;
    background: #0a7389;
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
  }
  
  nav ul {
    margin: 0;
    padding: 0;
  }
  
  nav a {
    display: block;
    color: #fff;
    text-decoration: none;
  }
  
  nav ul li {
    position: relative;
    float: left;
    list-style: none;
    color: #fff;
    transition: 0.5s;
  }
  
  nav ul li a {
    padding: 20px;
  }
  
  nav ul > li.submenu > a:after {
    position: relative;
    float: right;
    content: '';
    margin-left: 10px;
    margin-top: 5px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #fff;
    border-bottom: 5px solid transparent;
  }
  
  nav ul ul li.submenu > a:after {
    margin-left: auto;
    margin-right: -10px;
    border-left: 5px solid #fff;
    border-right: 5px solid transparent;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
  }
  
  nav ul li:hover {
    background: #4096ee;
  }
  
  nav ul ul {
    position: absolute;
    top: -9999px;
    left: -9999px;
    background: #0a7389;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
  }
  
  nav ul ul li {
    float: none;
    width: 200px;
    border-bottom: 1px solid #555;
  }
  
  nav ul ul li a {
    padding: 10px 20px;
  }
  
  nav ul ul li:last-child {
    border-bottom: none;
  }
  
  nav ul li:hover > ul {
    top: 100%;
    left: 0;
  }
  
  nav ul ul li:hover > ul {
    top: 0;
    left: 200px;
  }
  
  /* Declarations for the responsive menu */
  
  @media screen and (max-width: 1680px) {
    
  * {
    font-size: 18px;
    font-family: Arial, Helvetica, sans-serif;
  }
    
  label.responsive-nav-label {
    position: relative;
    display: block;
    padding: 20px;
    background: #0a7389;
    cursor: pointer;
    color: #fff;
  }
    
  label.responsive-nav-label span {
    margin-right: 10px;  
  }
  
  nav {
    position: absolute;
    top: -9999px;
    padding: 10px;
  }
  
  input#responsive-nav[type=checkbox]:checked ~ nav {
    position: relative;
    top: 0;
  }
  
  nav a:after {
    display: none;
  }
  
  nav li {
    float: none !important;
    width: 100% !important;
    border-bottom: none !important; 
  }
    
  nav li a {
    margin-bottom: 10px !important;
    padding: 10px 20px !important; 
    background: #82b9bf;
  }
    
  nav ul li:hover {
    background: none;
  }
    
  nav ul li a:hover {
    background: #4096ee;
  }
    
  nav ul ul {
    position: relative !important;
    width: 100%;
    left: 0 !important;
    top: 0 !important;
    background: none !important;
    box-shadow: none;
  }
    
  nav ul ul li {
    padding-left: 20px;
  }
  
  }