.item_book{ color:#555655}
.item_book strong{font-weight:600;}
.item_book img{width:206px;  float:right;}
.item_book .book_content{width:374px; float:right; padding:23px; background:#F3F4F4;}
.item_book .book_content h3{font-weight:600; font-size:18px; color:#555655;}
.item_book p.des{color:#8C8C8C; font-size:14px; font-weight:600;}
.item_book .source{color:#3A5C6F;  margin-bottom:15px; margin-top:5px;}
.item_book .source a{text-decoration:none; color:#3A5C6F; }