body {
    margin: auto;
    font-family: "Lato", Arial, sans-serif;
}

p {
    text-align: center;
}

table, #picker {
    margin-left: auto;
    margin-right: auto;
}

#picker {
    width: 340px;
}

th, td {
    padding-left: 20px;
    padding-right: 20px;
    text-align: center;
}

span {
    font-weight: bold;
}