body {
    padding: 0;
    margin: 0;
}

#panorama {
    width: 100%;
    height: 100vh;
    position: absolute;
}

.logo {
    background: url();
}

.as {
    position: fixed;
    z-index: 100;

}


.btn{
    position:fixed;
    margin-top:15vh;
    background-color: rgba(0, 0, 0, 0.548);
    color: white;
    font-size: medium;
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-style: italic;
    border: none;
    z-index: 100;
}


@media only screen and ( max-width:900px){

}
@media only screen and (max-width: 500px){
  

}