.activitylist {
  padding: 20px;
  background: #fff;
}
.activitylist .tc {
  text-align: center;
}
.activitylist .mr20 {
  margin-right: 20px;
}
.activitylist .limit {
  display: inline-block;
  margin: 10px 0px;
}
.activitylist .w160 {
  width: 160px;
}
.activitylist .w280 {
  width: 280px;
}