@import url('https://fonts.googleapis.com/css2?family=Muli&display=swap');

* {
  box-sizing:  border-box;
}
    
body{
    font-family: 'Muli' ,sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;

}
.container{
  display:flex;
  width: 90vw;
}

.panel{
  background-size: auto 100%;
  background-position: center;
  background-repeat: no-repeat;
  height: 80vh;
  border-radius: 50px;
  color: chartreuse;
  cursor: pointer;
  flex: 0.5;
  margin: 10px;
  position: relative;
  transition: flex 0.7s ease-in;
}

.panel h3 {
  font-size: 24px;
  position: absolute;
  bottom: 20px;
  left: 20px;
  margin: 0%;
  opacity: 0;
}

.panel.active {
  flex: 5;        
}

.panel.active h3{
  opacity: 1;
}

@media(max-width:480px) {
  .container{
    width: 100vw;
  }

  .panel:nth-of-type(4),
  .panel:nth-of-type(5){
    display: none;

  }
}