html,body{
margin:0;
background:#000;
height:100%;
overflow:hidden;
font-family:system-ui,sans-serif;
}
.bg{
width:100vw;
height:100vh;
display:flex;
align-items:center;
justify-content:center;
opacity:0;
transition:opacity .8s ease;
}
.loaded .bg{opacity:1;}
.bg img{
width:100%;
height:100%;
object-fit:contain;
animation:zoom 20s ease-in-out infinite alternate;
}
@keyframes zoom{
from{transform:scale(1);}
to{transform:scale(1.03);}
}