.pkp_structure_head {
    background:
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            135deg,
            #07152A,
            #A1341F
        ) !important;
}

.pkp_site_name {
    padding: 40px 0 !important;
}

.pkp_site_name a {
    color: #A1341F !important;
}

.pkp_navigation_primary > li > a {
    letter-spacing: 1px;
}

.pkp_navigation_primary > li > a {
    color: #A1341F !important;
}

<div class="header-banner" style="background-image: url('background: url('../images/header_background.jpg') no-repeat !important;'); ; height: 200px !important; ">
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