.plainmodal-close {
    position: absolute;
    z-index: 9999;
    top: 0;
    right: 0;
    line-height: 25px;
    width: 25px;
    cursor: pointer;
    text-align: center;
    font-family: Arial,sans-serif;
    background: #fff;
    background: rgba(255,255,255,.3);
    color: #000;
    border: 0;
    padding: 0;
}