.sidebar-nav {

}
.sidebar-nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.sidebar-nav .metismenu {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
}

.sidebar-nav .metismenu li li {
  background: rgba(255, 255, 255, 0.1);
}
.sidebar-nav .metismenu li {
  box-shadow: inset 0 -1px rgba(255, 255, 255, 0.1);
}

.sidebar-nav .metismenu > li {
    /*-webkit-box-flex: 1;
    -ms-flex: 1 1 0%;
    flex: 1 1 0%;*/
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    position: relative;
}
.sidebar-nav .metismenu a {
    position: relative;
    display: block;
    padding: 13px 15px;
    color: #fff;
    outline-width: 0;
    transition: all .3s ease-out;
}

.sidebar-nav .metismenu ul a {
    padding: 10px 15px 10px 2rem;
}
.sidebar-nav .metismenu ul ul a {
    padding: 10px 15px 10px 4rem;
}
.sidebar-nav .metismenu ul ul ul a {
    padding: 10px 15px 10px 6rem;
}
.sidebar-nav .metismenu ul ul ul ul a {
    padding: 10px 15px 10px 8rem;
}
.sidebar-nav .metismenu a:hover,
.sidebar-nav .metismenu a:focus,
.sidebar-nav .metismenu a:active {
    text-decoration: none;
    background: #2883c2;
}