html {
  height: 100%;
}
body {
  background: url('../images/bg-app.jpg') no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

.container-app{
	background: #ffffff;
	border-radius: 4px;
	margin-top: 45px;
	padding-bottom: 25px;
	padding-top: 25px;
}