.btnone {
    background-color: #000000; /* Green */
    border: none;
    color: white;
    padding: 11px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    font-weight: 700;
    margin: 10px 20px;
    transition-duration: 0.4s;
    cursor: pointer;
    border:2px solid rgb(0, 0, 0);
  }
 .btnone:hover {
    background-color:rgb(88, 88, 88);
    color: rgb(255, 255, 255);
    
  }

.btnwohnung {
    font-size: 14px;
    width: 130px;
    text-align: center;
}

.centerbutton {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}