This site was created in Bootstrap 3 and then converted in to a wordpress theme.

The container the text is within has an ID of top-banner and the CSS for this is

#top-banner {
    width: 966px;
    height: 132px;
    margin: 0px auto;
        margin-top: 0px;
        margin-bottom: 0px;
    background-image: url(../images/bg-page-title.png);
    background-repeat: no-repeat;
    background-position: center;
    z-index: 20;
    margin-top: -100px;
    margin-bottom: 30px;
}

The text is in a div with an ID of title
the CSS for this is

#title {
    width: 100%;
    margin-top: -10px;
    padding-top: 0px;
    float: left;
    text-align: center;
}

Thanks
Tony