/*メインイメージ*/
.cont_mainimg{
  background: url("/resources/img/special/atrium/pct_events_mainimg_pc.jpg") top center no-repeat;
  height:324px;
}


#event_area {
  width: 68.947368%;
  float: left;
}
.atrium_side_area {
  width: 27.257421%;
  float: right;
}