.xjumbotron {
    min-height: 80px;
    background-color: #666;
    color: white;
}
.xjumbotron > table {
    height: 100%;
    width: 100%;
    min-height: 80px;
    text-align: center;
}
.xjumbotron > table > tbody {}
.xjumbotron > table > tbody > tr {}
.xjumbotron > table > tbody > tr > td {
    vertical-align: middle;
    height: 100%;
}