.phone_item_bn{position:static}.ca_selected_info_box{margin-right:0}.explanation_concent_open>.explanation_concent_text div{white-space:pre-wrap;overflow:auto}.explanation_concent_close>.explanation_concent_text div{white-space:pre-wrap}.explanation_title{width:calc(100% - 500px)}.explanation_title_back{width:500px!important}#productName{text-align:left}#index_book_cover_img{width:100%;height:100%}@media screen and (max-width: 640px){.explanation_title{width:calc(100% - 300px)}.explanation_title_back{width:300px!important}.explanation_title_back a{max-width:250px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:inline-block}}