.my-list {
    width: 100%;
    list-style: none;
    margin: auto;
    padding: 0px;
}

    .my-list li {
        width: 100%;
        margin: 0px !important;
        padding: 0px !important;
        display: inline-block;
    }
    li:hover > ul{
        /*left:16em;*/
    }