ul.nav li i.fa-times {
    display: none;
}

ul.nav li:hover i.fa-times {
    display: inline;
    color: #c4161d;
    position: absolute;
    right: 4px;
    top: 4px;
    z-index: 1;
}

ul.nav li:hover i.fa-times:hover {
    /*cursor: crosshair;*/
}

ul.nav li:hover i.fa-times:hover::before {
    content: '\f057';
}