div#stopwatchWrapper {
    text-align: center;
}
div#stopwatch {
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    width: 300px;
    padding-top: 30px;
    padding-bottom: 30px;
    border: 2px #000000 solid;
    border-radius: 6px;
}
#stopwatchControl {
    text-align: center;
    width: 400px;
}
#stopwatchControl button {
    text-align: center;
    font-size: 30px;
    width: 6em;
}