.Page_title {
  background: url(../images/material/bg_ttl.jpg) center bottom no-repeat;
  -webkit-background-size: cover;
  background-size: cover;
}


@media only screen and (max-width: 767px) {
  .MaterialBox{
    padding : 30px!important;
  }
  .MaterialBox:nth-of-type(2n-1){
    background : #f3f2f1;
  }

}