Asidebar Menu Style01

<!DOCTYPE html>
<html>
<head>
	<title>Toggle Sidebar Using HTML/CSS | par NGLESSON</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<meta name="keyword" content="Toggle Sidebar Using HTML/CSS">
	<meta name="author" content="Mezgani said">
	<meta name="copyright" content="NGLESSON">
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
	<link href="style.css" rel="stylesheet">
</head>
<body>        
<nav class="main-menu">      
    <div class="settings"></div>
    <div class="scrollbar" id="navbar-left">
        <ul>
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-home fa-lg"></i>
                    <span class="nav-text">Home</span>
                </a>
            </li>   
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-info-circle fa-lg"></i>
                    <span class="nav-text">About</span>
                </a>
            </li>  
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-cogs fa-lg"></i>
                    <span class="nav-text">Product</span>
                </a>
            </li>    
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-home fa-lg"></i>
                    <span class="nav-text">Home</span>
                </a>
            </li>   
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-info-circle fa-lg"></i>
                    <span class="nav-text">About</span>
                </a>
            </li>  
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-cogs fa-lg"></i>
                    <span class="nav-text">Product</span>
                </a>
            </li> 
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-home fa-lg"></i>
                    <span class="nav-text">Home</span>
                </a>
            </li>   
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-info-circle fa-lg"></i>
                    <span class="nav-text">About</span>
                </a>
            </li>  
            <li>                                   
                <a href="https://www.nglesson.com/">
                    <i class="fa fa-cogs fa-lg"></i>
                    <span class="nav-text">Product</span>
                </a>
            </li> 
        </ul>
    </div>
</nav>
<script src="script.js"></script>
</body>
</html>

body{
  margin:0px;
  padding:0px;
  font-family: "Open Sans", arial;
  background:#CCC;
  color:#fff;
  font-weight:300;
}
.settings { 
  height:73px; 
  float:left;
  background-repeat:no-repeat;
  width:250px;
  margin:0px;
  text-align: center;
  font-size:20px;
  font-family: 'Strait', sans-serif;
}
/* ScrolBar  */
.scrollbar{
    height: 90%;
    width: 100%;
    overflow-y: hidden;
    overflow-x: hidden;
}
.scrollbar:hover{
    height: 90%;
    width: 100%;
    overflow-y: scroll;
    overflow-x: hidden;
}
/* Scrollbar Style */ 
#navbar-left::-webkit-scrollbar-track{
  border-radius: 2px;
}
#navbar-left::-webkit-scrollbar{
    width: 5px;
    background-color: #F7F7F7;
}
#navbar-left::-webkit-scrollbar-thumb{
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);
    background-color: #BFBFBF;
}
/* Scrollbar End */ 
.fa-lg {font-size: 1em;}
.fa {
    position: relative;
    width: 55px;
    height: 36px;
    text-align: center;
    top:12px; 
    font-size:20px;
}
.main-menu:hover, nav.main-menu.expanded {
    width:250px;
    overflow:hidden;
    opacity:1;
}
.main-menu {
    background:#F7F7F7;
    position:absolute;
    top:0;
    bottom:0;
    height:100%;
    left:0;
    width:55px;
    overflow:hidden;
    -webkit-transition:width .2s linear;
    transition:width .2s linear;
    -webkit-transform:translateZ(0) scale(1,1);
    box-shadow: 1px 0 15px rgba(0, 0, 0, 0.07);
    opacity:1;
}
.main-menu>ul {margin:7px 0;}

.main-menu li {
    position:relative;
    display:block;
    width:250px;
}
.main-menu li>a {
    position:relative;
    width:255px;
    display:table;
    border-collapse:collapse;
    border-spacing:0;
    color:#8a8a8a;
    font-size: 13px;
    text-decoration:none;
    -webkit-transform:translateZ(0) scale(1,1);
    -webkit-transition:all .14s linear;
    transition:all .14s linear;
    font-family: 'Strait', sans-serif;
    border-top:1px solid #f2f2f2;
    text-shadow: 1px 1px 1px  #fff;  
}

.main-menu .nav-text  {
    position:relative;
    display:table-cell;
    vertical-align:middle;
    width:190px;
}
/* Logo Hover Property */
.settings:hover, settings:focus {
    -webkit-transition: all 0.2s ease-in-out, width 0, height 0, top 0, left 0;
    -moz-transition: all 0.2s ease-in-out, width 0, height 0, top 0, left 0;
    -o-transition: all 0.2s ease-in-out, width 0, height 0, top 0, left 0;
    transition: all 0.2s ease-in-out, width 0, height 0, top 0, left 0; 
}
.settings:active, settings:focus {  
    -webkit-transition: all 0.1s ease-in-out, width 0, height 0, top 0, left 0;
    -moz-transition: all 0.1s ease-in-out, width 0, height 0, top 0, left 0;
    -o-transition: all 0.1s ease-in-out, width 0, height 0, top 0, left 0;
    transition: all 0.1s ease-in-out, width 0, height 0, top 0, left 0; 
}
a:hover,a:focus {
    text-decoration:none;
    border-left:0px solid #F7F7F7;
}
nav {
    -webkit-user-select:none;
    -moz-user-select:none;
    -ms-user-select:none;
    -o-user-select:none;
    user-select:none;
}
nav ul,nav li {
    outline:0;
    margin:0;
    padding:0;
    text-transform: uppercase;
}
.main-menu li:hover>a,
nav.main-menu li.active>a{
    color:#fff;
    background-color:#bb6a00;
    text-shadow: 0px 0px 0px; 
}