.invis {
  	height: 1px;
  	left: -999px;
  	position: absolute;
  	top: -999px;
  	visibility: hidden;
  	width: 1px;
	}
    
.nav-side {
  	background: #56cee8;
  	color: #fff;
  	top: .9rem;
  	box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
  	height: 3rem;
  	left: .3rem;
  	border-radius:5px;
  	overflow: hidden;
  	padding: 8px 0;
  	position: fixed;
  	transition: all .3s;
  	width: 4.5rem;
  	z-index: 999;
	}

.nav-side li {
	margin-bottom: 0;
	}
	
#mobile-menu .level_1,
#mobile-menu .level_2,
#mobile-menu .level_3 {
  	height: 0%;
  	list-style: none;
  	margin: 0;
  	overflow: hidden;
  	transition: all .3s;
	}

	
#mobile-menu ul li ul {
  padding-left: 2em;
  }
  
#mobile-menu a,
#mobile-menu span.active,
#mobile-menu strong.active{
    color: #fff;
    display: block;
    padding: .8rem .5rem;
    text-decoration: none;
	}
	
#mobile-menu a:hover,
#mobile-menu li.active {
    background: rgba(0, 0, 0, 0.5);
    border-radius:5px;
    }
		
.btn-label {
  	cursor: pointer;
  	display: block;
  	height:3rem;
  	width: 4.5rem;
  	position: absolute;
  	top: 0;
  	left: 0;
	}
  
.btn-label .top {
    height: 3px;
    background-color: #fff;
    position: absolute;
    top: 40%;
    left: 20%;
    right: 20%;
  	}
  
.btn-label .middle {
    height: 3px;
    background-color: #fff;
    position: absolute;
    top: 70%;
    left: 20%;
    right: 20%;
  	}
  	
.btn-label .bottom {
    height: 3px;
    background-color: #fff;
    position: absolute;
    top: 100%;
    left: 20%;
    right: 20%;
  }
  
.btn-label .label {
    text-align: center;
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    font-size: 12px;
  	}
  
#nav-expand:checked + .nav-side .btn-label {
    display: none;
  	}

#nav-expand:checked + .nav-side .close {
    display: block;
  	}

#nav-expand:checked + .nav-side {
  	height: 95%;
  	left: 0;
  	width: 70%;
  	padding-left:10px;
  	padding-right:10px;
   }
   
#nav-expand:checked + .nav-side > ul {
    height: 90%;
    overflow: scroll;
    }

.close {
  	cursor: pointer;
  	text-align: right;
  	padding-right: 15px;
  	line-height: 30px;
  	font-size: 30px;
  	cursor: pointer;
  	display: none;
  	height: 40px;
  	border-bottom: 1px solid #fff;
	}