.event_box{
  padding: 0 0 2rem;
  min-height: 40vh;
}

.event{
  width: 640px;
  margin: 0 auto 10px;
}


@media all and (max-width: 768px) {
  .event{
    width: auto;
    margin: 0 70px 10px;
  }
}

.event:last-child{
  margin-bottom: 0;
}