#top-line{
    font-weight: 600;
    font-size: 15px;
    text-align: center;
    padding: 15px;
    position: relative;
    width: 100%;
    left: 0;
    line-height: 25px;
}


@media (min-width: 728px) {
    #top-line {
        position: relative;
        z-index: 999;
    }
}

#top-line .close-topline {
    line-height: 0;
    font-size: 0.875rem;
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
}