.block-book-navigation{margin-bottom:1.5em}.block-book-navigation nav[role=navigation] ul{list-style:none;margin:0;padding:0}.block-book-navigation nav[role=navigation] li{margin:0;padding:.25em 0}.block-book-navigation nav[role=navigation] a{border-left:0.1875rem solid rgba(0,0,0,0);color:var(--dxt-color-text);display:block;padding:.5em .75em;text-decoration:none;-webkit-transition:all .2s ease;transition:all .2s ease}.block-book-navigation nav[role=navigation] a:hover,.block-book-navigation nav[role=navigation] a:focus{background-color:var(--dxt-color-silver);border-left-color:var(--dxt-color-base);color:var(--dxt-color-base)}.block-book-navigation nav[role=navigation] a.is-active{background-color:var(--dxt-color-base);border-left-color:var(--dxt-color-headings);color:var(--dxt-color-basetext)}.block-book-navigation nav[role=navigation] ul ul{border-left:0.0625rem solid var(--dxt-color-graylight);margin-left:1em}.block-book-navigation nav[role=navigation] ul ul a{font-size:.9em;padding-left:1em}.book-traversal__list{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background-color:var(--dxt-color-silver);border:0.0625rem solid var(--dxt-color-graylight);border-radius:.375em;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;margin:2em 0;padding:1em}.book-traversal__item{list-style:none;margin:0}.book-traversal__list a{background-color:var(--dxt-color-base);border-radius:.25em;color:var(--dxt-color-basetext);display:inline-block;padding:.5em 1em;text-decoration:none;-webkit-transition:background-color .2s ease;transition:background-color .2s ease}.book-traversal__list a:hover,.book-traversal__list a:focus{background-color:var(--dxt-color-headings);color:var(--dxt-color-basetext)}@media(width <= 47.99875rem){.book-traversal__list{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:.5em}.book-traversal__list a{text-align:center;width:100%}}