/*
Manage displaying of opening book as submenu function
*/
#book-menu-first-element {
  display: none;
}
#book-menu-first-element:target {
  display: block;
}
.component {
	z-index: 999;
	position: fixed;
	height: 100%;
	width: 100%;
  top: 0;
  left: 0;
  background-color: rgba(194, 190, 190, 0.7);
  display: flex;
  text-align: justify;
  align-items: center;
  align-content: center;
  align-self: center;
}
.book-ul-navigation-link {
  list-style: none;
  margin: 0;
  padding: 0;
}
.book-a {
	color: #2c3e50;
	text-decoration: none;
}
.book-btn {
	text-transform: uppercase;
	/*margin-top: 100px;*/
	font-weight: 700;
	padding: 0.1em 0.4em;
	text-align: center;
	-webkit-transition: color 0.3s, border-color 0.3s;
	-moz-transition: color 0.3s, border-color 0.3s;
	transition: color 0.3s, border-color 0.3s;
}
.book-btn:hover {
	border-color: #de7b85;
	color: #de7b85;
}
.book-principal-link{
  border: 2px solid #2c3e50;
  font-size: 2.5em;
}
.book-secondary-link{
  font-size: 1.5em;
}