.logo-holder img{
   text-align:center;
   width:128px;
   display:block;
   margin:20px auto;
}

.book-summary h3{
   text-align: center;
}

.book-summary ul.summary li h4 {
   padding: 10px 15px;
   position: relative;
   display: block;
/*
   color: #9DAAB6;
*/
   margin-bottom:0;
}

.book-summary ul.summary li .hl {
   font-weight: bold;

}

.book-summary ul.summary li.active>a {
    color: #11967F;
}

.markdown-section a {
    color: #11967F;
}


.markdown-section img {
    display: block;
    margin: auto;
}

.markdown-section code {
   color: #11967F;
   background-color: #f3f3f3;
   font-size: 1em;
   font-weight: bold;
}

@media print {
    .book-body{
        height:100%;
        overflow:visible;
    }
	.book-header {
	    display:none;
	}
}