.rij {
    text-align: center;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0px;


    
}


.links, .rechts{
    flex: 50%; /* Set the width of the sidebar */
    padding: 15px;
    
}

.error {
    color: red;
}

.registratiediv {
    width: 80vw;
    margin-left:auto;
    margin-right:auto;
    border-style: solid;
    border-color: black;
    border-width: 3px;
    background-color: #ddd;
}

.registratieknop {
    padding: 2px;
    background-color: black;
    color: white;
    width: 120px;
    cursor: pointer;
    padding: 3px;
}
.registratieknop:hover {
    background-color: white;
    color: black;
}

#div_registratieknop {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

input {
    font-size: 1em;
    padding: 5px;

}


@media screen and (max-width: 800px) {


    .registratiediv {
        width: 95vw;
        
    }







}