@charset "UTF-8";
/* ----------------------------------------------
mainTitle
----------------------------------------------*/
#mainTitle::after {
  background: url(../img/activity/title-sp.jpg) center top no-repeat;
  background-size: 100% auto;
}
@media all and (min-width: 768px) {
  #mainTitle::after {
    background: url(../img/activity/title.jpg) center top no-repeat;
    background-size: 100% auto;
  }
  @media only screen and (-webkit-min-device-pixel-ratio: 2) {
    #mainTitle::after {
      background: url(../img/activity/title@2x.jpg) center top no-repeat;
      background-size: 100% auto;
    }
  }
}