body{
    display:flex;
}
.left{
     width:50%;
     background-color:darkblue;
     height: 100%;
     min-height: 100vh;

}
.right{
    width:50%;
    background-color:azure;
    height:100%;
    min-height:100vh;
}

.rocket-icon{
    width: 200px;
    position: absolute;
    bottom: 0;
    left: 70%;
    transition: bottom 3000ms;

}

body.state3 .rocket-icon{
    bottom: 1000px;
}

div.state1,div.state2,div.state3{
    width:300px;
    margin:20% auto;
    background-color:white;
    /*box-shadow 0 010pxgray*/
    border-radius: 7px;
    padding:15px;
    -webkit-box-shadow:-7px 2px 44px 0px rgba(255,255,255,1);
    box-shadow:-7px 2px 44px 0px rgba(255,255,255,1);
    text-align: center;
    display: none;
}
.state1 a,.state2 a,.state3 a{
    background: teal;
    padding:8px 16px;
    border-radius:4px;
    color:white;
    text-decoration:none;
}
body.state1 div.state1{
    display:block;

}
body.state2 div.state2{
    display:block;
}
body.state3 div.state3{
    display:block;
}