body, html{
	margin:0;
	font-size: 16px;
	font-family: 'Open Sans', sans-serif;
}
ul, ol{
	list-style: none;
	padding:0;
	margin:0;
}
input:focus, button:focus, textarea:focus,select:focus{
	outline: 0;
	box-shadow: none;
}
a,a:hover,a:focus{
	text-decoration: none;
}
img{
	max-width: 100%;
}
.text-right{
	text-align: right;
}
.text-left{
	text-align: left;
}
.content_section{
    position: relative;
}
.content_section .main_book{
    max-width: 100%;
}
.content_section .item_detail{
    display: flex;
    min-height: 100%;
    align-items: center;
    position: relative;
    width: 100%;
}
.content_section .item_detail h3{
    font-size: 2.25rem;
    font-weight: 400;
    line-height: 1;
}
.content_section .item_detail h4{
    font-size: 2rem;
    font-weight: 400;
}
.content_section .item_detail p{
    color: #333333;
    font-size: 1rem;
    line-height: 1.75;
    font-weight: 600;
}
.content_section .item_detail .purchase_box{
    background: #E0DBD8;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 4.5rem;
    margin-bottom: .5rem;
    padding: .75rem 1rem;
    transition: all .3s ease;
}
.content_section .item_detail .purchase_box:hover{
    background: #e8e8e8;
}
.content_section .item_desc{
    padding: 1.5rem 1rem;
    position: relative;
    width: 100%;
    display: inline-block;
}
.content_section .item_desc .nav-tabs{
    border: 0;
    border-bottom: 2px solid #D4D2D7;
}
.content_section .item_desc .nav-tabs .nav-link{
    margin: 0;
    color: #383838;
    font-size: 1rem;
    padding: .85rem 0;
    border: 0;
    padding-right: 2rem;
    font-family: 'Playfair Display', serif;
    text-transform: uppercase;
    font-weight: 600;
}
.content_section .item_desc .nav-tabs .nav-link:hover,
.content_section .item_desc .nav-tabs .nav-link:focus,
.content_section .item_desc .nav-tabs .nav-link.active{
    color: #608BBF;
}
.content_section .item_desc .tab-pane{
    padding: 2rem 0;
}
.content_section .item_desc .tab-pane h5{
    color: #000;
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
}
.content_section .item_desc .tab-pane p{
    color: #333333;
    font-size: 1rem;
    line-height: 1.75;
    font-weight: 600;
}
.content_section .footer{
    background: #ffffff;
    padding: 1rem 2.5rem;
    width: 100%;
    position: relative;
}
.content_section .footer a{
    // display: inline-block;
    width: 100%;
}
.content_section .footer a img{
    width: 100%;
}
.content_section .footer .flexer{
    display: flex;
    align-items: flex-end;
    min-height: 100%;
}
.content_section .footer p{
    color: #333333;
    margin-bottom: .5rem;
    padding-left: 1rem;
    font-size: 1.1rem;
}