.navbar-header {
            width: 100% !important;
        }
        .navbar-brand {
            padding-right: 0;
            font-size: 14px !important;
        }
        #nav-buy-now {
            color: black;
            float: right;
            font-size: 14px;
            font-weight: 700;
            margin-right: -10px;
        }
        @media (min-width: 768px) {
            #nav-buy-now {
                margin-right: 0px;
            }
        }
        #bs-example-navbar-collapse-1 {
            display: none;
        }

        .wowbook {
            font-family: "Open Sans","Helvetica Neue",Arial,sans-serif;
        }
        .wowbook-page-content {
            padding: 1.5em;
        }
        .wowbook ul {
            padding-left: 1em;
        }
        .book-thumb {
            height: 150px;
            box-shadow: 0 0 3px rgba(0, 0, 0, 0.5)
        }

        #book1-trigger, #book2-trigger, #book3-trigger {
            cursor: pointer;
        }
        #book1-trigger:hover, #book2-trigger:hover, #book3-trigger:hover {
            background: #f8f8f8;
        }

        .wowbook-lightbox > .wowbook-close {
            background: transparent !important;
            border: none !important;
            color: #222 !important;
            font-size: 2.5em;
        }
        .wowbook-lightbox > .wowbook-close:hover {
            background: #444 !important;
            color: white !important;
            border-radius: 3px;
        }


        .lightbox-images1 .wowbook-book-container {
            background: #6d6b92; /* Old browsers */
            background: -moz-radial-gradient(center, ellipse cover, #ffffff 0%, #6d6b92 100%); /* FF3.6-15 */
            background: -webkit-radial-gradient(center, ellipse cover, #ffffff 0%,#6d6b92 100%); /* Chrome10-25,Safari5.1-6 */
            background: radial-gradient(ellipse at center, #ffffff 0%,#6d6b92 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
        }
        .lightbox-images1 > .wowbook-close,
        .lightbox-images2 > .wowbook-close {
            color: #ccc !important;
        }

        .lightbox-pdf  .wowbook-book-container {
            background: #e5e5e5 url(./img/bg-lightbox-pdf.png); /* Old browsers */
            background: #e5e5e5 -moz-radial-gradient(center, ellipse cover, #ffffff 20%, #bbbbbb 100%); /* FF3.6-15 */
            background: #e5e5e5 -webkit-radial-gradient(center, ellipse cover, #ffffff 20%,#bbbbbb 100%); /* Chrome10-25,Safari5.1-6 */
            background: #e5e5e5 radial-gradient(ellipse at center, #ffffff 20%,#bbbbbb 100%); /* W3C, IE10+, FF16+, Chrome26+,Opera12+, Safari7+*/
        }


        .lightbox-html  .wowbook-book-container {
            background: url(img/book_html/wood.jpg);
        }
        .lightbox-html .wowbook-toolbar {
            margin-top: 1em; /* FIXME */
            box-sizing: content-box !important;
        }

        .lightbox-html .wowbook-controls {
            border-radius: 6px;
            width: auto;
        }

        .lightbox-html.wowbook-mobile .wowbook-toolbar {
            margin: 0;
        }

        .lightbox-html.wowbook-mobile .wowbook-controls {
            border-radius: 0;
            width: 100%;
        }

        hr {
            max-width: 450px;
        }

        .wowbook-right .wowbook-gutter-shadow {
            background-image: url("./img/page_right_background.png");
            background-position: 0 0;
            width: 75px;
        }
        .wowbook-left .wowbook-gutter-shadow {
            background-image: url("./img/page_left_background.png");
            opacity: 0.5;
            width: 60px;
        }
        .wowbook-control-currentPage {
            font-family: "Segoe UI",Helvetica,Arial,sans-serif;
        }