body{
	margin: 0;
	padding: 0;
	background-image: url('../images/img-1.png');
	background-position: center;
	transition: background-color 1s linear;
	overflow-x: hidden;
	overflow-y: auto;
    font-family: 'Roboto', sans-serif;
	height: 100vh;
/*	min-width: 520px; */

}
.animationload {
    position: fixed;
    top:0;
    left:0;
    right:0;
    bottom:0;
    background-color:#fff;
    z-index:999999;
}


.loader {
    width:200px;
    height:200px;
    font-size:0;
    position:absolute;
    left:50%;
    top:50%;
    background-image:url(../images/loader.gif);
    background-repeat:no-repeat;
    background-position:center;
    margin:-100px 0 0 -100px;
}
/*
.video {
	text-align: center;
}
.video > iframe {
	width: 623px;
	height: 350px;
}
*/
.footer{
	width: 100vw;
	margin-bottom: 0px;
	text-align: center;
    padding-bottom: 0px;
}
.copyright{
    padding-top: 10px;
}

.description_container {
	align-content: center;
	width: 50%;
}

.description  {
	background-color: silver;
	padding: 10px 2em;
	margin: 10px;
	text-align: justify;
	border: 1px solid black;
	border-radius: 25px;
	/* box-shadow: 10px 10px 5px lightgray; */
	width: 100%;
}

.description h4 {
	color: black;
	font-weight: boldest;
	text-align: center;
	border-bottom: 1px solid red;
}

.top {
	position: absolute;
	top: 10px;
	left: 26px;
	height: 96px;
	width: calc(100vw - 50px);
	background-color: black;
	border: 1px solid black;
	border-radius: 200px 50px 50px 200px;
	color: white;
	min-width: 323px;
}

.main {
	margin: 150px auto auto auto;
}

img#logo {
	margin: 0px 10px auto -20px;
	float: left;
}

.author {
	font-weight: boldest;
	font-size: 2em;
	height: 2em;
	text-align: center;
	width: calc(100vw-40px);
}

#nav {
	font-size: 1.35em;
	width: 100%;
}

#nav > .nav_option > a[href] {
	color: white;
	text-decoration: none;
	font-weight: 200;
	margin-right: 2em;
}

#nav > .nav_option > a[href]:hover {
	border-bottom: 1px solid red;
}

.bookcover {
	float: left;
}
.bookcover > img {
	display: flex;
	width: calc(100vw * 0.40);
	max-width: 360px;
}

.highlight {
	color: black;
	font-size: 2em; 
	font-weight: boldest;
}
a.highlight {
	text-decoration: none;
}
a.highlight:hover {
	border-bottom: 1px solid white;
}
@media screen and (min-width:651px) and (max-width:767px) {
	.bookcover {
		width: 98vw;
	}
	.bookcover > img {
		display: flex;
		width: 300px;
		margin: 0 auto;
	}
	.description_container {
		display: block;
		width: calc(100vw - 20px);
		align-content: center;
		margin-top:410px;
	}
}
@media screen and (max-width:650px) {
	.bookcover > img {
		display: flex;
		width: 98vw;
		max-width: 300px;
		margin: 0 auto;
	}
	.bookcover {
		margin-right: 2em;
		width: 100vw;
	}
	.description_container {
		width: 95vw;
		align-content: center;
		margin-top: 410px;
	}
}
@media screen and (max-width:414px) {
	#nav {
		margin-top: -18px;
	}
	.bookcover {
		margin: 0;
		padding: 0;
		width: 100vw;
	}
	.bookcover > img {
		padding: 0;
		margin: auto;
		width: 300px;
	}		
	.description_container {
		width: 95vw;
	}
}