body{
  font-family: "Mulish", serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  font-size: 18px;
}

h3{
    font-size: 22px;
    color: #fff;
}
.container{
    width: 90vw;
    margin: 0 auto;
}

.panels{
    display: flex;
}
.panel{
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    flex: 0.5;
    margin: 10px;
    border-radius: 12px;
    min-height: 620px;
    position: relative;
    transition: flex 0.7s ease-in;
}
.panel h3{
    position: absolute;
    padding: 10px;
    bottom: 10px;
    opacity: 0;
    
}
.panel.active{
    flex: 5;
}
.panel.active h3{
    opacity: 1;
    transition: opacity 0.3s ease-in 0.4s;

}