.sidenav ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
    padding: 10px 0 10px 0;
    border: 1px solid grey;
  }
  .sidenav ul li {
    font-size: 1.2em;
    text-align: center;
    padding: 0 10px 0 10px;
    border: 1px solid grey;
  }
  
  .burger-icon {
    margin-right: 15px;
  }
  .burger-icon span {
    display: none;
    width: 35px;
    height: 5px;
    background-color: grey;
    border: 1px solid #fff;
    margin: 4px 0;
  }
  
  .hidden-sidenav {
    left: -80%
  }
  .show-sidenav {
    position: fixed;
    left: 0;
  }
  
/* Responsive*/
@media screen and (min-width: 319px) and (max-width: 420px) {

  .sidenav {
    position: fixed;
    display: flex;
    flex-direction: column;

    justify-content: center;
    top:0;
    height: 100%;
    width: 50%;
    z-index: 1;
    background-color: grey;

    border-radius: 0 0 15px 0;
    border: 1px solid #fff;
    transition: left 0.5s ease;
    -webkit-border-radius: 0 0 15px 0;
    -moz-border-radius: 0 0 15px 0;
    -ms-border-radius: 0 0 15px 0;
    -o-border-radius: 0 0 15px 0;
  }

  /** Navlink **/
  .sidenav ul {
    margin:0;
    padding:0;
    display: block;
  }
  /* Link */
  .sidenav ul li {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
  }
  .sidenav ul li a {
    color:#fff;
    list-style-type: none;
    text-decoration: none;
  }
  /* Burger */
  .burger-icon {
    position: fixed;
    top: 0;
    right: 0;
    padding: 5px 0 5px 0;
    z-index: 1;
  }

  .burger-icon span {
    display: block;
  }
  /* Close cross */
  .close-icon {
    position: absolute;
    display: block;
    right: 0;
    top: 0;
    text-decoration: none;
    font-size: 1.5em;
    color: #fff;
  }
}