body.bg
{
	background-image: url(bg.svg);
	background-size: 100% 100%;
	background-size: cover;
}

body.moss
{
	background-image: url(bg_moss.png);
	background-size: 100% 100%;
	background-size: cover;
}

img
{
  width: 50%;
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}