.books .menu ul li{
	border-right: solid 1px #898989;
}

.main_right{
	width: calc(100vw *1170 / 1900);
	float: right;
	height: 100vh;
	background-color: #feffe1;
}

.main_left,
.main_left{
	background-image: url(../img/books_bg.jpg);
	float: left;
	width: calc(100vw *730 / 1900);
	height: 100vh;
	background-size: cover;
	background-repeat: no-repeat;
	background-position: 50% 100%;
}

.main_left .ml_title{
	float: right;
	color: white;
	text-align: center;
	/*margin-top: 55vh;*/
	margin-top:  130px;
	margin-right: 20px;
}

.main_left .ml_title h1{
	font-size: 30px;
	font-weight: bold;
	line-height: 40px;
	letter-spacing: 2px;
	text-shadow: 2px 2px 4px #000000;
}

.main_left .ml_title h2{
	font-size: 20px;
	line-height: 24px;
	text-shadow: 2px 2px 4px #000000;
}

.mr_item{
	display: inline-block;
	width: calc(100vw *245 / 1900);
	padding: 0 calc(100vw * 10/ 1900);
	vertical-align: top;
	margin-bottom: calc(100vw * 40/ 1900);
	vertical-align: top;
}

.mr_item a{
	text-decoration: none;
}

.mr_thumb{
	width: calc(100vw *250 / 1900);
	height: calc(100vw *395 / 1900);
	background-size: cover;
	background-position: 50% 0;
}

.mr_item .mr_mask{
	display: block;
	width: 100%;
	width: calc(100vw *250 / 1900);
	height: calc(100vw *395 / 1900);
	margin-top: calc(-100vw *395 / 1900);
	position: relative;
	background-color: rgba(0,0,0,.5);
}

.mr_item:hover .mr_mask{
	display: none;
}

.mr_title{
	font-size: 16px;
	color: black;
	line-height: 20px;
	font-weight: bold;
	margin: 10px auto;
}

.mr_main{
	overflow-y:scroll;
	margin-top: 110px;
	height: calc(100vh - 110px);
	padding: 10px 0 50px;
}

.mr_main::-webkit-scrollbar {
  width: 4px;
  margin-right: 2px;
}
.mr_main::-webkit-scrollbar-track {
  -webkit-box-shadow: inset 0 0 4px #eee;
}
.mr_main::-webkit-scrollbar-thumb {
  background-color: #b2b2b2;
  outline: 1px solid #eee;
}

.mr_content{
	color: #616161;
	line-height: 30px;
	padding-bottom: 50px;

	width: calc(100vw *1100 / 1900);
	margin: 0 auto;
}

.mr_btns{
	width: 100%;
	height: 40px;
	background-color: #2c7825;
}

.mr_btns span{
	float: left;
	width: 50%;
	height: 30px;

	-webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}

.mr_btns span a{
	display: block;
	width: 100%;
	height: 20px;
	margin-top: 10px;

	
}

.mr_btns span a:before{
	content: ' ';
	display: block;
	position: relative;
	width: 100%;
	height: 100%;
	background-repeat: no-repeat;
	background-size: auto 100%;
	background-position: 50%;

	opacity: 1;
}

.mr_btns span a:hover:before{
	opacity: .5;
}

.mr_btns span a.look:before{
	background-image: url(../img/icon_look.png);
}

.mr_btns span a.download:before{
	background-image: url(../img/icon_download.png);
}

.mr_btns span a.download{
	border-left: solid 2px white;
}

.mr_pages{
	margin: 30px auto 50px;
	text-align: center;
}
.mr_pages a {
	color: #000000;
	display: inline-block;
	font-size: 16px;
	height: 20px;
	line-height: 20px;
	margin-bottom: 10px;
	padding: 0 5px;
	text-decoration: none;
}
.mr_pages a.prev,.mr_pages a.pagesfirst,.mr_pages a.next,.mr_pages a.pageslast {
	background-repeat: no-repeat;
	-webkit-background-size: 10px auto;
	 background-size: 10px auto;
}
.mr_pages a.pagesfirst {
	padding: 0 5px 0 13px;
	background-position: 0 3px;
	background-image: url(../img/pagesfirst.png) ;
}
.mr_pages a.prev {
	padding: 0 5px 0 13px;
	background-position: 0 3px;
	background-image: url(../img/prev.png) ;
	margin: 0 10px;
}
.mr_pages a.pageslast {
	padding: 0 13px 0 5px;
	background-position: right 0 top 3px;
	background-image: url(../img/pageslast.png) ;
}
.mr_pages a.next {
	padding: 0 13px 0 5px;
	background-position: right 0 top 3px;
	background-image: url(../img/next.png) ;
	margin: 0 10px;
}
.mr_pages a:visited {
	color: #21529b;
}
.mr_pages a.pagesfirst:visited , .mr_pages a.prev:visited, .mr_pages a.pageslast:visited , .mr_pages a.next:visited {
	color: #000;
}
.mr_pages a:hover {
	color: #2c7825 !important;
}
.mr_pages a.prev:hover,.mr_pages a.pagesfirst:hover {
	background-position: 0 -17px;
}
.mr_pages a.next:hover,.mr_pages a.pageslast:hover {
	background-position: right 0 top -17px;
}
.mr_pages a.selected {
	color: #2c7825;
	text-decoration: underline;
}
.mr_pages a.selected:hover {
	text-decoration: none;
}

@media screen and (max-width: 1200px){
	.mr_main{
		margin-top: 90px;
	}

	.full_view{
		height: calc(100vh - 90px);
		top: 90px;
	}
}

/* For mobile phones: */
@media only screen and (max-width: 768px) {
	.main_left {
		float: none;
		width: 100%;
		height: 275px;
		background-position: center;
	}
	.main_left .ml_title {
		margin-right: 25px;
		margin-top: 70px;
	}
	.main_left .ml_title h1 {
		font-size: 18px;
		line-height: 18px;
	}
	.main_left .ml_title h2 {
		font-size: 13px;
	}
	.main_right {
		float: none;
		height: auto;
		overflow: hidden;
		width: 100%;
	}
	.mr_main {
		margin-top: 0;
		overflow: hidden;
		padding: 30px 15px;
		height: auto;
	}
	.mr_content {
		width: 100%;
	}
	.mr_item {
		width: calc(44% - 6px);
		margin-right: 10%;
		margin-bottom: 50px;
	}
	.mr_item:nth-of-type(2n) {
		margin-right: 0;
	}
	.mr_thumb {
		height: calc(100vw * 250 / 395 - 30px);
		width: 100%;
	}
	.mr_item .mr_mask {
		height: calc(100vw * 250 / 395 - 30px);
		width: 100%;
		margin-top: calc(-100vw * 250 / 395 + 30px);
	}

	.mr_pages a {
		display: inline-block;
		height: 20px;
		line-height: 20px;
	}
	.mr_pages a.prev,.mr_pages a.pagesfirst,.mr_pages a.next,.mr_pages a.pageslast {
		text-indent: -5000px;
		padding: 0 5px;
		margin: 0;
	}
}