.YT_box,.YT_file {
    width: 100%;!important;
}
/* FAQ追加 */
.FAQcontainer {
    background-color: #666;
    color: #fff;
    padding: 1.15em;
    border-radius: 6px;
    text-align: center;
    line-height: 1.1;
    font-size: 1.15rem;
    font-weight: 300;
    margin-bottom: 15px;
    -webkit-transition: background-color 0.3s; /* Safari/Chrome用 */
    transition: background-color 0.3s; /* 他のブラウザ用 */
}
.FAQlink {
    text-decoration: none; 
}
.FAQlink:hover {
    text-decoration: none; 
}
.FAQlink:hover .FAQcontainer {
    background-color: #e72f7e; 
}

.product_infomation .product_title {
    margin-bottom: 30px;
    color: #4169e1;
    font-size: 16px;
}

.product_infomation .product_text font:first-child {
    display: none;
}
.product_infomation .product_text font:first-child+br {
    display: none;
}
.product_infomation .product_text font:first-child+br+br {
    display: none;
}