Javascript-форум - backgroundImage из div'ов

Доброго времени суток! Есть идея по созданию двойных обоев на сайте. Первый (нижний слой) - просто сплошной цвет, а второй - div с @keyframes. Как реализовать это на js, если backgroundImage не вариант :blink: ?
Тот самый div:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
background: #003366;
}
.star {
width: 18px;
height: 18px;
border: 1px solid transparent;
position: relative;
}
.star > * {
position: absolute;
background: white;
width: 2px;
height: 2px;
}
.point1 {
animation: p1 linear infinite 1.5s;
left: 8px;
}
.point2 {
animation: p2 linear infinite 1.5s;
top: 8px;
}
.point3 {
left: 8px;
animation: p3 linear infinite 1.5s;
}
.point4 {
animation: p4 linear infinite 1.5s;
top: 8px;
}
.point5 {
animation: p5 linear infinite 1.5s;
}
.point6 {
animation: p6 linear infinite 1.5s;
}
.point7 {
animation: p7 linear infinite 1.5s;
}
.point8 {
animation: p8 linear infinite 1.5s;
}
@keyframes p1 {
0% {
top: 8px;
}
25% {
top: 0px;
height: 6px;
}
50% {
top: 0px;
height: 2px;
}
75% {
top: 0px;
height: 6px
}
100% {
top: 8px;
height: 2px;
}
}
@keyframes p2 {
0% {
right: 8px;
}
25% {
right: 0px;
width: 6px;
}
50% {
right: 0px;
width: 2px
}
75% {
right: 0px;
width: 6px;
}
100% {
right: 8px;
width: 2px;
}
}
@keyframes p3 {
0% {
bottom: 8px;
}
25% {
bottom: 0px;
height: 6px;
}
50% {
bottom: 0px;
height: 2px;
}
75% {
bottom: 0px;
height: 6px
}
100% {
bottom: 8px;
height: 2px;
}
}
@keyframes p4 {
0% {
left: 8px;
}
25% {
left: 0px;
width: 6px;
}
50% {
left: 0px;
width: 2px
}
75% {
left: 0px;
width: 6px;
}
100% {
left: 8px;
width: 2px;
}
}
@keyframes p5 {
0% {
left: 8px;
top: 8px;
}
25% {
left: 8px;
top: 8px;
}
50% {
left: 2px;
top: 2px;
}
75% {
left: 8px;
top: 8px;
}
100% {
left: 8px;
top: 8px;
}
}
@keyframes p6 {
0% {
right: 8px;
top: 8px;
}
25% {
right: 8px;
top: 8px;
}
50% {
right: 2px;
top: 2px;
}
75% {
right: 8px;
top: 8px;
}
100% {
right: 8px;
top: 8px;
}
}
@keyframes p7 {
0%{
right: 8px;
bottom: 8px;
}
25% {
right: 8px;
bottom: 8px;
}
50% {
right: 2px;
bottom: 2px;
}
75% {
right: 8px;
bottom: 8px;
}
100% {
right: 8px;
bottom: 8px;
}
}
@keyframes p8 {
0%{
left: 8px;
bottom: 8px;
}
25% {
left: 8px;
bottom: 8px;
}
50% {
left: 2px;
bottom: 2px;
}
75% {
left: 8px;
bottom: 8px;
}
100% {
left: 8px;
bottom: 8px;
}
}
</style>
</head>
<body>
<div class="star">
<div class="point1"></div>
<div class="point2"></div>
<div class="point3"></div>
<div class="point4"></div>
<div class="point5"></div>
<div class="point6"></div>
<div class="point7"></div>
<div class="point8"></div>
</div>
</body>
</html>