salix/print/report/report-header/assets/css/style.css

header {
    border-bottom: 1px solid #DDD;
    padding-bottom: 10px;
    margin-bottom: 40px;
    text-align: center;
    font-size: 12px;
    color: #555
}

header img {
    margin-bottom: 10px;
    width: 350px
}