ul.checklist {
    border: 1px solid #ccc;
    list-style: none;
    overflow: auto;
}

ul.checklist, ul.checklist li { margin: 0; padding: 0; }

ul.checklist label {
    display: block;
    padding-left: 25px;
    text-indent: -25px;
height: 1%; /* IE hack */
}

ul.checklist label:hover { background: #777; color: #fff; }