body {
    font-family: verdana, arial;
    font-size: 18px;
    margin: 0px;
    padding: 0px;
    background-color: #FFFFFF;
}

button {
    border: 1px solid #000000;
    background-color: #9D9D9C;
    color: #FFFFFF;
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 0px;
    padding-bottom: 0px;
    margin: 0px;
    height: 38px;
    font-weight: bold;
}

input, select, textarea {
    border: 1px solid #000000;
    color: #000000;
    font-size: 18px;
    border-radius: 0;
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
    padding: 10px;
    margin-bottom: 5px;
}

.planningtabel td {
    border: 1px solid #666666;
    background-color: #FFFFFF;
}

.planningtabel th {
    background-color: #9D9D9C;
    color: #FFFFFF;
    font-weight: bold;
}

.melding_informatie, .melding_error, .melding_oke {
    width: 100%;
    height: 40px;
    line-height: 40px;
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
    color: #FFFFFF;
    background-color: rgba(49,91,170,1);
}

.melding_error {
    background-color: #FFCCCC;
}

.melding_oke {
    background-color: #baffc2;
    color: #000000;
}

.flex-container {
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}

.flex-container-item {
    background-color: #f1f1f1;
    margin: 10px;
    font-size: 18px;
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 15px;
    padding-bottom: 15px;
    text-align: center;
    font-weight: bold;
}

.flex-container-item-selected {
    background-color: rgba(49,91,170,1);
    margin: 10px;
    font-size: 18px;
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 15px;
    padding-bottom: 15px;
    text-align: center;
    color: #FFFFFF;
    font-weight: bold;
}