.dialogBg {
    max-width: 200px;
    width: auto;
    display: block;
    background: rgba(0,0,0,.6);
    border-radius: 2px;
    color: #fff;
    text-align: center;
    position: fixed;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    -webkit-transform: translateY(-50%);
    -o-transform: translateY(-50%);
    z-index: 1000000;
    margin: auto;
    font-size: 14px;
    padding: 10px 10px;
    line-height: 25px;
}