#bg {
background-image: url('bg.gif');
background-repeat: repeat;
background-size: 160px;
background-color: #FF7100;
width: 99%;
}

.container {
position: relative;
}

#page {
content: url('page.gif');
position: absolute;
width: 630px;
box-shadow: 5px 10px 15px black;
}

#cir {
content: url('cir.png');
position: absolute;
filter: drop-shadow(0px 5px 5px black);
}

#cir:hover {
content: url('circ.gif');
position: absolute;
filter: drop-shadow(0px 5px 5px black);
}