table.ctrl-table {
    margin-left: auto;
    margin-right: auto;
}

table.ctrl-table tr td {
    padding: 10px 10px 10px 10px;
}

table.ctrl-table tr td input[type="button"] {
    width: 50px;
    height: 50px;
    font-size: 2em;
}

table.arm-table {
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
}

table.arm-table tr td {
    padding: 0px 20px 0px 20px;
}