.row{
  width:700px;
  max-width:100%;
  margin:auto;
}
.row img{
  max-width: 100%;
}
.offer_banner_block{
  text-align: center;
  background: #D2DEDA;
  padding-bottom: 10%;
}
.offer_banner_block img{
  width: 80%;
}
.footer{
  background: #8DB8B1;
  text-align:center;
  color: #FFF;
  padding: 30px;
  margin-top: 50px;
}

/*PR表記*/
.pr_block {
  text-align: right;
  background: #eeefea;
}