frontend/main.css

button {
    color: darksalmon;
    background-color: hotpink;
    margin-bottom:50px;
    border: darkslateblue 2px outset;
    border-radius: 10%;
}

#oefenen-3 {
    border: 5px orangered solid;
    text-align: center;
    margin-left:20%;
    margin-right:20%;
    
}

#oef-btn-3 {
    margin-top: 20px;
    color: black;
}