input[type="submit"] {
    background-color: #efefef;
    color: #3a3a3a;
    cursor: pointer;
    float: right;
    padding: 0 2rem;
    height: 2em;
    border: solid 4px #1bbd4f;

    -webkit-transition: all 100ms linear;
    -moz-transition: all 100ms linear;
    -o-transition: all 100ms linear;
    -ms-transition: all 100ms linear;
    transition: all 100ms linear;
}
input[type="submit"]:hover {
    background-color: #1bbd4f;
    color: #fff;
}
input[type="submit"]:disabled {
    border: solid 4px #ccc;
    color: #999;
}
input[type="submit"]:disabled:hover {
    background-color: #efefef;
}

#captchaInput {
    width: 100px;
    margin-left: .5em;background-color: #efefef;
}