.sidenav {
  height: 100%;
  width: 0;
  position: absolute;
  z-index: 1000;
  top: 0;
  left: 0;
  background-color: #111;
  opacity: 0.9;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
}

.sidenav a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 18px;
  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;}
}

/*
.menu-toggle {
  display: inline-block;
  cursor: pointer;
	position:absolute;
  z-index: 1000;
}

.bar1, .bar2, .bar3 {
  width: 35px;
  height: 5px;
  background-color: #333;
  margin: 6px 0;
  transition: 0.4s;
}

.change .bar1 {
  -webkit-transform: rotate(-45deg) translate(-9px, 6px) ;
  transform: rotate(-45deg) translate(-9px, 6px) ;
}

.change .bar2 {
  opacity: 0;
}

.change .bar3 {
  -webkit-transform: rotate(45deg) translate(-8px, -8px) ;
  transform: rotate(45deg) translate(-8px, -8px) ;
}
*/

.tabs {
  position: relative;
  margin: 3rem 0;
}
.tabs::before,
.tabs::after {
  content: "";
  display: table;
}
.tabs::after {
  clear: both;
}
.tab {
  float: left;
}
.tab-switch {
  display: none;
}
.tab-label {
  position: relative;
  display: block;
  line-height: 2.75em;
  height: 3em;
  padding: 0 1.618em;
  color: #fff;
  cursor: pointer;
  top: 0;
  transition: all 0.25s;
}
.tab-label:hover {
  top: -0.25rem;
  transition: top 0.25s;
}
.tab-content {
  height: 12rem;
  position: absolute;
  z-index: 990;
  top: 2.75em;
  left: 0;
  background: #111;
  padding: 1.618rem;
  opacity: 0;
  transition: all 0.35s;
}
.tab-switch:checked + .tab-label {
  border-bottom: 0.125rem solid #818181;
  transition: all 0.35s;
  z-index: 1000;
  top: -0.0625rem;
}
.tab-switch:checked + label + .tab-content {
  z-index: 999;
  opacity: 1;
  transition: all 0.35s;
}