main {
    height: 60%;
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
}
#links {
    display: flex;
    flex-direction: column;
    align-items:center;
    justify-content: center;
    width:20%;
}
#links button {
    background-color: #990033;
    color:white;
    margin: 5px 0;
    height: 50px;
    border-radius: 10%;
    width: 150px;
}
#rechts {
    display: flex;
    flex-direction: column;
}
.rechts{
    height:100%;
    width: 100%;
    list-style-position: inside;
    display:flex;
    flex-direction: column;
    align-items:center;
}

#rechts2, #rechts3, #rechts4{
    display: none;
 }