#containerdef {
    width: 40%;
    height: 150px;
    border: red;
    border-radius: 10px;
}
#container2 {
    width: 45%;
    height: 150px;
    border: red;
    border-radius: 10px;
}
.flex-container {
    display: flex;
    flex-wrap: nowrap;
    background-color: DodgerBlue;
}

.flex-container > div {
    /*background-color: #f1f1f1;*/
    width: 45px;
    margin: 1px;
    text-align: center;
    line-height: 30px;
    font-size: 20px;
    font-family: "Trebuchet MS";
    padding: 5px;
}
.d1 {
    background-color: seagreen;
    color: seagreen;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* Schaduweffect */
    padding: 20px; /* Binnenruimte */
    width: 200px; /* Breedte van het vak */
    margin: 20px; /* Buitenruimte */
}
.d0 {
    background-color: lightgray;
    color: lightgray;
    border-radius: 5px;
    box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.2); /* Ingedrukte schaduweffect */
    padding: 20px; /* Binnenruimte */
    width: 200px; /* Breedte van het vak */
    margin: 20px; /* Buitenruimte */
}
/* tabel opmaak */
#docenten #groepen {
    border-collapse: collapse;
    width: 50%;
}
#users {
    border-collapse: collapse;
    width: 50%;
}
#docenten td, #docenten th {
    border: 1px solid #ddd;
    padding: 8px;
}
#groepen td, #groepen th {
    border: 1px solid #ddd;
    padding: 8px;
}
#docenten tr:nth-child(even){background-color: #f2f2f2;}
#groepen tr:nth-child(even){background-color: #f2f2f2;}

#docenten tr:hover {background-color: var(--hover);}
#groepen tr:hover {background-color: var(--hover);}

#docenten th, #docenten th {
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: var(--primary0);
    color: white;
}