#main-content-c {
    max-width: 1300px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 25px;
}

.main-content-c-1 {
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
}

.main-content-c-2 {
    text-align: center;
}

.main-content-c-1::after {
    content: "";
    display: table;
    clear: both;
}

.titel-1 {
    font-size: 35px;
    font-weight: bold;
    text-align: center;
}

.titel-2 {
    font-size: 30px;
    font-weight: bold;
    text-align: center;
}

.column-c {
    float: left;
    padding: 10px;
}

.column-c.left-c {
    width: 50%;
    padding-left: 20px;
    padding-top: 120px;
}

.column-c.right-c {
    width: 50%;
    padding-right: 20px;
    text-align: center;
}

@media screen and (max-width: 600px) {
    .column-c.left-c, .column-c.right-c {
        padding-top: 0;
        text-align: center;
        width: 100%;
    }
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -16px;
}

.col-50 {
    flex: 50%;
    padding: 0 16px;
}

input[type=text], select, textarea {
    width: 100%;
    margin-bottom: 20px;
    padding: 12px;
    border: 2x solid #ccc;
}

label {
    display: block;
    text-align: left;
}

button {
    background-color: #4caf50;
    color: white;
    padding: 14px 20px;
    cursor: pointer;
    width: 100%;
}

button:hover {
    opacity: 0.7;
}

.cancelbtn, .signupbtn {
    float: left;
    width: 50%;
}

.clearfix::after {
    content: "";
    clear: both;
    display: table;
}

.cancelbtn {
    padding: 14px 20px;
    background-color: #f44336;
}

@media screen and (max-width: 600px) {
    .row {
        flex-direction: column;
    }
    .col-50 {
        margin-bottom: 20px;
    }
}

.weiterbtn {
    width: 20%;
    font-size: 25px;
}