.sidebar {
  width: 200px;
  height: 100vh;
}

ul.toc {
    margin: 45px 0 0 0;
    padding: 0;
    li {
        list-style: outside none none;
        margin: 0;
        height: 40px;
        margin: 0 auto 1px;
        background: rgba(241, 241, 241, 0.5);
        border-radius: 5px;
        &:hover {
            background: hsla(200, 100%, 70%, .1);
        }
        a {
            color: hsla(0, 5%, 35%, 1);
            float: left;
            width: 90%;
            vertical-align: center;
            clear: both;
            text-decoration: none;
            height: 40px;
            padding: 0 0 0 10px;
            display: -webkit-box;
            display: flex !important;
            align-items: center;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            &:hover {
                float: left;
                clear: both;
                text-decoration: none;
                cursor: pointer;
                text-shadow: none;
            }
        }
    }
}