nav{position:relative;}
#cssmenu,#cssmenu ul.nav,#cssmenu #head-mobile{border:0;list-style:none;line-height:1;display:block;position:relative;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;}
#cssmenu ul.nav {float:left; background:#fff;}
#cssmenu:after,#cssmenu > ul:after{content:".";display:block;clear:both;visibility:hidden;line-height:0;height:0}
#cssmenu #head-mobile{display:none}
#cssmenu{margin-top:15px;}
#cssmenu > ul > li{float:left;margin-right:10px;}
#cssmenu > ul > li > a{padding:17px;font-size:12px;letter-spacing:1px;text-decoration:none;}
#cssmenu ul li.has-sub ul {visibility:hidden; height:0;}
#cssmenu ul li.has-sub:hover ul {visibility:visible; height:auto;}

@media screen and (max-width:1000px){
    nav{width:100%;}
    #cssmenu, #cssmenu> ul {width:100%; z-index:9999;}
    #cssmenu ul li{width:100%;border-top:1px solid #444}
    #cssmenu ul ul li,#cssmenu li:hover > ul > li{height:auto}
    #cssmenu ul li a,#cssmenu ul ul li a{width:100%;border-bottom:0}
    #cssmenu > ul > li{float:none}
    #cssmenu #head-mobile{display:block;padding:27px;color:#ddd;font-size:12px;font-weight:700}
    .button{width:55px;height:46px;position:absolute;left:0;top:-9px;cursor:pointer;z-index: 12399994;}
    .button:after{position:absolute;top:22px;right:20px;display:block;height:8px;width:20px;border-top:2px solid #333;border-bottom:2px solid #333;content:''}
    .button:before{-webkit-transition:all .3s ease;-ms-transition:all .3s ease;transition:all .3s ease;position:absolute;top:16px;right:20px;display:block;height:2px;width:20px;background:#333;content:''}
    .button.menu-opened:after{-webkit-transition:all .3s ease;-ms-transition:all .3s ease;transition:all .3s ease;top:23px;border:0;height:2px;width:19px;background:#333;-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-ms-transform:rotate(45deg);-o-transform:rotate(45deg);transform:rotate(45deg)}
    .button.menu-opened:before{top:23px;background:#333;width:19px;-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);-o-transform:rotate(-45deg);transform:rotate(-45deg)}


    /*#cssmenu ul li .header--sub-menu {visibility:hidden; height:0}*/
    /*#cssmenu ul li a:focus + .header--sub-menu {display:block; position:static; height:auto;}*/
    /*#cssmenu ul li a:focus {pointer-events:none;}*/
    /*#cssmenu ul li a:focus + .header--sub-menu ul {display:block !important;}*/
    /*.menu-gadget .header--sub-menu .sub-menu--left>li {float:none;border-top:none !important;}*/
    /*#cssmenu ul li.has-sub ul {visibility:visible; height:auto;}*/
    /*#cssmenu ul li {border-top:1px solid #ccc;}*/

    /* add by hoang */
    .nav-item:hover .nav--special:before {
        display: none;
    }
    /* end */
}

.treeview-menu>li>a>.fa, .treeview-menu>li>a>.glyphicon, .treeview-menu>li>a>.ion {
    width: 20px;
    left: -1.8em;
}
.treeview>a>.fa {
    margin-left: -12px;
    margin-right: 7px;
}
.tree-menu {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    padding-left: 5px;
}
ol,ul {
    list-style: none;
}
.ul-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}
.treeview-menu {
    padding: 0px;
}
#cssmenu .nav-item{
    position: relative;
}
.showmenu{
    position: absolute;
    right:0px;
    top:5px;
    width: 6%;
    height:38px;
    z-index: 2;
}
.showmenu > i{
    font-size: 26px;
    margin-right:15px;
    margin-top:5px;

}

 .menu-open>.showmenu>.fa-angle-left {
    -webkit-transform: rotate(-90deg);
    -ms-transform: rotate(-90deg);
    -o-transform: rotate(-90deg);
    transform: rotate(-90deg);
}
 .submenu{
    top: -3px;
 }

 .submenu i {
      margin-right: 0;
 }

 @media screen and (max-width:991px) {
    #cssmenu .first-menu {
		padding: 15px 20px 15px 40px;
		/*padding-bottom: 0;*/
		top: 60px;
		margin-left: 0;
		background-color: #ececec;
		border-top: solid 4px #879e70;
		opacity: 0.95;
		text-transform: none;
    }

    .treeview-menu {
        margin-left: 20px;
        border-top: none;
    }

    .treeview-menu a {
        font-weight: normal!important;
        text-transform: none;
    }

    #cssmenu .treeview-menu .nav-item {
        border-top: none;
    }

    #cssmenu {
        margin-top: 5px;
    }
 }