body {
	margin: 0;
	padding: 0; 
}
.header {
	padding: 50px 0;
	background-color: #000;
}
.test {
	/*padding: 25px 0;*/
	background-color: slategrey;
	position: -webkit-sticky;
}
.header, .test {
	text-align: center;
	color: #fff;
}
.content {
	width: 600px;
	margin: 10px auto 100px;
}

.sticky {
  position: fixed;
  width: 100%;
  left: 0;
  top: 0;
  z-index: 100;
  border-top: 0;
}