select {
margin-bottom:0.5em;
}
.frame {
position:relative;
width:90vw;
height:90vh;
}
.frame canvas, .frame img {
object-fit:contain;
width:100%;
height:100%;
display:block;
position:absolute;top:0;left:0;
}
#elImg {
opacity:0;
transition:all 1s;
}
#elImg.show {
opacity:1;
}