.copybox {
    position: relative;
    .success {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(75, 184, 255, .75);
        color: #fff;
        display: table;
        vertical-align: middle;
        text-align: center;
    }
}
