.content {
  width: 1200px;
  margin: 188px auto 100px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}
.content .item-activity {
  width: 270px;
  height: 360px;
  margin: 0px 40px 40px 0;
  border: 1px solid #fff;
  position: relative;
  background-color: #fff;
  overflow: hidden;
}
.content .item-activity .activity-img {
  width: 270px;
  height: 270px;
}
.content .item-activity:nth-child(4n) {
  margin-right: 0;
}
.content .item-activity img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
.content .item-activity .code {
  position: absolute;
  width: 270px;
  height: 270px;
  top: 0;
  left: 0;
  z-index: 9;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  -webkit-transition: opacity .5s;
     -moz-transition: opacity .5s;
       -o-transition: opacity .5s;
          transition: opacity .5s;
}
.content .item-activity .code img {
  margin: 45px 0 0 55px;
  width: 160px;
  height: 160px;
}
.content .item-activity .code p {
  position: absolute;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  width: 164px;
  font-size: 12px;
  color: #fff;
  left: 53px;
  bottom: 36px;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
     -moz-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.content .item-activity .item-title .title {
  font-size: 16px;
  margin: 12px 0 12px 14px;
  overflow: hidden;
  white-space: nowrap;
  -o-text-overflow: ellipsis;
     text-overflow: ellipsis;
  color: #333;
}
.content .item-activity .item-title .title-money {
  margin: 0 14px 0;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
     -moz-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.content .item-activity .item-title .title-money .money {
  height: 30px;
  color: #3FBAAB;
  font-size: 22px;
  font-weight: bold;
  line-height: 17px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
  -webkit-align-items: flex-end;
     -moz-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
}
.content .item-activity .item-title .title-money .money span {
  font-size: 12px;
  font-weight: normal;
}
.content .item-activity .item-title .title-money .money div {
  display: inline-block;
  font-size: 22px;
  margin-bottom: 2px;
}
.content .item-activity .item-title .title-money .appoint {
  width: 96px;
  height: 30px;
  line-height: 30px;
  font-size: 14px;
  color: #fff;
  text-align: center;
  border-radius: 30px;
  background-color: #3FBAAB;
}
.content .item-activity:hover .code {
  opacity: 1;
}
.content .item-activity:hover {
  cursor: pointer;
  border: 1px solid #3FBAAB;
}