@import url('https://fonts.googleapis.com/css2?family=Muli&display=swap');
body{
    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: cover;
    background-position: center;
    background-attachment: no-repeat;
    height: 80vh;
    border-radius: 50px;
    color: white;
    flex: 0.5;
    margin: 10px;
    padding: 10px;
    position: relative;
    transition: flex .07s ease-in;
}
.panel h3{
font-size: 20px;
position: absolute;
bottom: 20px;
left: 20px;
margin: 0;
opacity: 0;
}
.panel.active{
    flex:5;
}
.panel.active h3{
    opacity: 1;
    transition: opacity 0.3s ease-in 0.2s;
}
@media(max-width:480px){
    .container{
        width: 100vw;
    }
    .panel:nth-of-type(4),.panel:nth-of-type(5){
        display: none;
    }
}