.experLine {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  width: 750px;
  margin: 28px auto 0;
}

.experLine .experCard {
  margin-right: 24px;
  position: relative;
  flex: 0 0 350px;
  height: 304px;
  margin-bottom: 28px;

}
.experLine .experCard img{
   width: 100%;
   height: 100%;

}
.experLine .experCard:nth-child(3n) {
  margin-right: 0px;
}

.experLine .experCard .experTitle {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 64px;
  line-height: 64px;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.experLine .experCard .experTitle .txt {
  width: 100%;
  font-size: 18px;
  line-height: 30px;
  font-family: adobekaitistd-regular;
  color: #fff;
  text-align: center;
  padding-left: 10px;

}