#modal{
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0,0,0,.5);
    display: flex;
    justify-content: center;
    align-items: center;
}
#modal_open{
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0,0,0,.5);
    display: flex;
    justify-content: center;
    align-items: center;
}


.modal__window {
  position: relative;
  background-color: #222;
  padding: 4em 2em;
}

.modal__close {
  position: absolute;
  top: -30px;
  right: 0;
}

#modal:not(:target) {
    visibility: hidden;
    opacity: 0;
}

#modal_open:not(:target) {
    visibility: hidden;
    opacity: 0;
}

.error {
    color:red;
    
}

#modal button {

    background-color: #ff9933;

    color: #fff;

    padding: 10px 20px;

    border: none;

    border-radius: 4px;

    cursor: pointer;

    font-size: 16px;

}

#modal_open button {

    background-color: #ff9933;

    color: #fff;

    padding: 10px 20px;

    border: none;

    border-radius: 4px;

    cursor: pointer;

    font-size: 16px;

}