.top_info .top_news_icon img, #nav-content .sp_logo img, .indexPage .top_bnr img, .prd_bnr img, .warning_bnr img, .bottom_bnr img, .line-bnr .line-bnr-wrap .gotoLine img, #footer .footer-logo img, .mail_bnr img{
  width: 100%;
  height: auto;
}

.warning_bnr {
  margin: 0 0 30px;
}

.mail_bnr {
    margin: 0 0 80px;
    padding-top: 30px;
}