.tnks-bannr {
    min-height: 200px;
    display: flex;
    background: #f7f7f7;
    position: relative;
}
.tnks-bannr:after {
    content: " ";
    background: url(https://www.manageengine.com/analytics-plus/images/tnks-pg-bg.png) no-repeat;
    position: absolute;
    top: 0px;
    left: 0px;
    background-size: cover;
    height: 100%;
    width: 100%;
    z-index: 0;
}