Css menu vertical - FCWordpress

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Css menu vertical với submenu siêu đơn giản</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  
  <style>
  *{
	  margin:0;
	  padding:0;
	  box-sizing:border-box;
  }
  body{
	  padding-top:50px;
  }
  .danh-muc-menu-at-home-page {
    max-width: 241px;
	margin:0 auto;
}
.danh-muc-menu-at-home-page ul li a .fa {
    margin-right: 6px;
}
.danh-muc-menu-at-home-page .title-danh-muc {
    background: #3498db;
    line-height: 25px;
    padding: 10px 16px;
    color: #fff;
    font-weight: 700;
}
 .danh-muc-menu-at-home-page ul {
    margin: 0;
    padding: 0;
}

.danh-muc-menu-at-home-page ul li {
    list-style: none;
    padding: 8px 15px;
    margin: 0;
    border: 1px solid #ddd;
    line-height: 23px;
    transition: all .5s ease;
}

.danh-muc-menu-at-home-page ul li a {
    font-size: 18px;
    color: #333;
    text-decoration: none;
}

.danh-muc-menu-at-home-page ul>li {
    position: relative;
}

.danh-muc-menu-at-home-page ul>li>ul {
    position: absolute;
    left: 239px;
    top: 0;
    background: #fff;
    z-index: 999;
    width: 15em;
    display: none;
}

.danh-muc-menu-at-home-page ul>li.menu-item-has-children:after {
    content: "\f105";
    font-family: FontAwesome;
    position: absolute;
    right: 9px;
}

.danh-muc-menu-at-home-page ul>li:hover>ul {
    display: block;
}

.danh-muc-menu-at-home-page ul li:hover {
    background: #3498db;
    color: #fff;
}

.danh-muc-menu-at-home-page ul>li:hover>a {
    color: #fff;
}
  </style>
</head>
<body>
<div  class="danh-muc-menu-at-home-page">
		
			
			
<div class="title-danh-muc">
DANH MỤC
</div>
<ul>
<li  class="menu-item-has-children">
<a href="#"><i class="_mi _before fa fa-home" aria-hidden="true"></i><span>Item menu level 1</span></a>
<ul class="sub-menu">
	<li><a href="#">Item menu level 2</a></li>
	<li><a href="#">Item menu level 2</a></li>
</ul>
</li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
<li><a href="#"><i class="_mi _before fa fa-cutlery" aria-hidden="true"></i><span>Item menu level 1</span></a></li>
</ul>
			</div>
</body>
</html>