.cd-close-form {
    display: block;
    position: absolute;
    width: 40px;
    height: 40px;
    right: 15px;
    top: 15px;
    background: url("/_inc/modal/lib/grey-close-button.png") no-repeat center center;
    background-size: 30px;
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
}