body {
    font-family: arial;
    max-width: 610px;
    font-size: 0.95em;
    color: #232323;
}
.demo-error {
    color:#FF0000;
    font-size: 0.95em;
}
.demo-input {
    width: 100%;
    border-radius: 5px;
    border: #CCC 1px solid;
    padding: 12px;
    margin-top: 5px;
}
.demo-btn {
    padding: 12px;
    border-radius: 5px;
    background: #232323;
    border: #284828 1px solid;
    color: #FFF;
    width: 100%;
    cursor: pointer;
    margin-top: 4px;
}
.demo-table {
    border-radius: 3px;
    padding: 10px;
    border: #E0E0E0 1px solid;
}
.demo-success {
    margin-top: 5px;
    color: #478347;
    background: #e2ead1;
    padding: 10px;
    border-radius: 5px;
}
.captcha-input {
    background: #FFF url('../../captchaImageSource.php') repeat-y left center;
    padding-left: 85px;
}
.div-main {
    position: absolute;
    left: 50%;
    top: 50%;
    border-radius: 10px;
    padding: 20px;
    transform: translate(-50%, -50%);
    box-shadow: 0px 0px 6px 1px black;
}
.div-main img {
    width: 400px;
    margin: 30px auto;
    padding-bottom: 20px;
    display: block;
}