*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: rgb(123, 160, 148);
  display: flex;
  justify-content: center;
  align-items: center;
}
tc.container{
  width: 500px;
  height: 700px;
  margin-top: 40px;
  position: relative;
}
.tc-container img{
  width: 100%;
  height: 100%;
}
.top-img {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
}
.top-img:hover{
  opacity: 1;
}