label {
    display: block;
    /*width: 100%;*/
    padding: 8px 22px;
    margin: 0 0 1px 0;
    cursor: pointer;
    background: #000000;
    border-radius: 3px;
    color: #FFF;
    transition: ease .5s;
    position: relative;
}
label:hover {
    background: #FF0000;
}

label::after {
    content: '+';
    font-size: 22px;
    font-weight: bold;
    position: absolute;
    right: 10px;  /* positie -teken */
    top: 2px;
}

input:checked + label::after {
    content: '-';
    right: 14px; /* positie +teken */
    top: 3px;
}

.content {
    background: #FFFFFF;
    padding: 10px 5px;
    border: 1px solid #FFFFFF;
    margin: 0 0 1px 0;
    border-radius: 0px;
}

input + label + .content {
    display: none;
}

input:checked + label + .content {
    display: block;
}

input {
    display: none;
}

input[type='text'] {
    display: block;
}

input[type='password'] {
    display: block;
}

input[type='submit'] {
    display: block;
}