div#timeComputer {
    width: 60%;
    margin-left: auto;
    margin-right: auto;
}

table#timeComputer {
    width: 60%;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid blue;
    padding: 3px;
}

table#timeComputer tr.title {
    color: white;
    background: blue;
    text-align: center;
}

table#timeComputer th.vtitle {
    text-align: right;
}

table#timeComputer tr td {
    text-align: left;
}

table tr.separator {
    background: silver;
    height: 3px;
}

table tr.help {
    background: #fff842;
    color: #000248;
    height: 3px;
}