div.book_main
{
display: flex;
padding: 1rem;
flex-wrap: wrap;
align-content: space-between;
background: #F1F1F2;
}

div.book_main a.item
{
display: block;
width: 24%;
text-decoration: none;
text-align: center;
align-content: space-between;
}

div.book_main a.item h3
{
text-transform: none;
color: #214361;
font-size: 1rem;
line-height: 1.25rem;
}

div.book_main a.item:hover h3
{
color: #F6921E;
}

div.book_main a.item h3 span
{
display: block;
color: #000;
font-size: 1.15rem;
}

div.book_main a.item div.thumb
{
width: 80%;
height: auto;
padding-top: 120%;
background-position: center;
background-size: cover;
margin-left: auto;
margin-right: auto;
outline: solid 1px #E6E7E8;
}

@media (max-width: 768px)
{
	div.book_main
	{
		padding-bottom: 1rem;
	}
	div.book_main a.item
	{
		width: 48%;
		margin-top: 1rem;
	}
}