.overlay {
    display:none;
    position:fixed;
    z-index:999;
    opacity:0.5;
    filter:alpha(opacity=50);
    top:0;
    right:0;
    left:0;
    bottom:0;
    background:#000;
}

.popup {
    display:none;
    position:fixed;
    border:3px solid #999;
    background:#fff;
    top:50%;
    left:50%;
    margin:-225px 0 0 -225px;
    z-index:1000;
    border-radius:8px;
    padding:18px;
    width: 450px;
    text-align: center;
}

.close {
    display:block;
    width:24px;
    text-align:center;
    cursor:pointer;
    height:24px;
    line-height:24px;
    background:#fff;
    color:red;
    position:absolute;
    top:10px;
    right:10px;
    text-decoration:none;
    font-size:20px;
}

.input_holder {
    border: #7F9DB9 1px solid;
    width: 230px;
    margin: 0 auto 12px;
}

.input_holder > span {
    margin-left: 5px;
}

.input_holder,
.input_holder input {
    font-size: 17px;
}

.input_holder input {
    border: 0;
    display: inline-block;
}

.popup .content_wrapper p {
    font-size: 18px;
}

#response {
    color: red;
}

.open_popup {
    cursor: pointer;
}