.container33 {
  display: flex;
  width: 100%;
  padding: 3% 2%;
  box-sizing: border-box;
  height: 60vh;
}

.box33 {
  flex: 1;
  overflow: hidden;
  transition: .5s;
  margin: 0 1%;
  box-shadow: 0 20px 25px rgba(0,0,0,.1);
  line-height: 0;
}

.box33 > img {
  width: 100%;
  height: calc(100% - 10vh);
  object-fit: contain; 
  transition: .5s;
}

.box33 > span {
  font-size: 1.8vh;
  display: block;
  text-align: center;
  height: 10vh;
  line-height: 2.6;
}

.box33:hover { flex: 1 1 60%; }
.box33:hover > img {
  width: 100%;
  height: 100%;
}