.book-navigation .menu{padding-top:1em;padding-bottom:0;}.book-navigation .book-pager{overflow:auto;margin:0;padding:0.5em 0;}.book-pager__item{display:inline-block;list-style-type:none;vertical-align:top;}.book-pager__item--previous{width:45%;text-align:left;}[dir="rtl"] .book-pager__item--previous{float:right;text-align:right;}.book-pager__item--center{width:8%;text-align:center;}.book-pager__item--next{float:right;width:45%;text-align:right;}[dir="rtl"] .book-pager__item--next{float:left;text-align:left;}
.onscroll #header{position:fixed;z-index:499;top:0;width:100%;}