#objPano_sp{border:1px solid #F00;
width:100vw;
height:160vw;
}
@media only screen and (min-width:750px){
#objPano_sp{border:1px solid #00F;
width:750px;
height:1200px;
margin-left:auto;
margin-right:auto;
position:relative;
display:block;
}
}