html, body {
  margin: 0;
  height: 100%
}

.sky {
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
  -webkit-animation: sky_background 50s ease-out infinite;
  -moz-animation: sky_background 50s ease-out infinite;
  -o-animation: sky_background 50s ease-out infinite;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0)
}


.formu {
	position: absolute;
	left: 24px;
	top: 15px;
	height: 49px;
	font-size: 14px;
	z-index: 100;
	padding: 10px;
	padding-left: 35px;
	
}