body, h1, h2, h3, h4, h5, h6, p, small, button {
  font-family: 'Open Sans', 'Noto Sans TC', sans-serif !important;
}

body, p {
  font-weight: 400;
  font-size: 15px;
}

.book-navbar {
  text-align: center;
  background: #163e35;
  position: fixed;
  width: 100%;
  bottom: 0;
  z-index: 99;
}

.book-navbar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.book-navbar ul li {
  display: inline-block;
  vertical-align: top;
}

.book-navbar li .btnList {
  border: none;
  background-color: transparent;
  font-size: 18px;
  width: 44px;
  height: 44px;
  line-height: 44px;
  color: #fff;
  cursor: pointer;
  outline: none;    
  text-align: center;
  display: block;
  padding: 0;
}

.book-navbar li .btnList:hover {
  background-color: rgba(0, 0, 0, 0.2);
}

.book-navbar li .inputList {
  height: 32px;
  line-height: 32px;
  border: 0;
  width: 45px;
  text-align: center;
  margin: 5px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 4px;
}

.book-navbar li .inputList[readonly] {
  background: #d4d4d4;
  color: #828282;
}

.book-navbar li.hasDropdown {
  position: relative;
}

.book-navbar li.hasDropdown .dropdownMenu {
  display: none;
  position: absolute;
  bottom: 100%;
  right: 0;
  min-width: 200px;
  background: #163e35;
  z-index: 99;
}

.book-navbar li.hasDropdown .dropdownMenu.active {
  display: block;
}

.book-navbar li.hasDropdown .dropdownMenu li {
  display: block;
  border-bottom: 1px solid rgb(255 255 255 / 20%);
}

.book-navbar li.hasDropdown .dropdownMenu li button {
  display: block;
  width: 100%;
  text-align: left;
  background-color: transparent;
  border: none;
  color: #fff;
  font-size: 15px;
  font-weight: 300;
  padding: 5px 10px;
  cursor: pointer;
}

.book-navbar li.hasDropdown .dropdownMenu li button:hover {
  background-color: rgba(0, 0, 0, 0.2);
}

.sample-docs .next-button, .sample-docs .previous-button {
  position: fixed;
  z-index: 9;
  width: 40px;
}

.sample-docs .previous-button {
  left: 0;
}

.sample-docs .next-button {
  right: 0;
}

.sample-docs .previous-button-hover, .sample-docs .next-button-hover {
  background-color: transparent;
}

.sample-docs .next-button, .sample-docs .previous-button {
  position: fixed !important;
  z-index: 999 !important;
  width: 40px !important;
  height: 100% !important;
  background-image: url(../pics/arrows.png);
  background-repeat: no-repeat;
  background-color: transparent;
  cursor: pointer;
}

.sample-docs .next-button-hover, .sample-docs .next-button-down, .sample-docs .next-button {
  background-position:-30px center;
}

.sample-docs .previous-button-hover, .sample-docs .previous-button-down, .sample-docs .previous-button {
  background-position: 3px center;
}

.sample-docs .previous-button {
  left: 0 !important;
}

.sample-docs .next-button {
  right: 0 !important;
}

.sample-docs .previous-button-hover, .sample-docs .next-button-hover {
  background-color: transparent !important;
}

.sample-docs .next-button-hover, .sample-docs .next-button-down {
  background-position:-30px center !important;
}

.sample-docs .previous-button-hover, .sample-docs .previous-button-down {
  background-position: 3px center !important;
}

.sample-docs {
  margin: 0px auto !important;
}

@media (max-width: 767px) {
  #book-zoom111 {
    display: flex;
    justify-content: center;
  }
  .book-navbar ul {
    display: flex;
    justify-content: center;
    align-items: center;
  }
}