body {
	background-color: Silver;
	padding:0px;
	margin:0px;
}

header{
	 background-image: linear-gradient(-90deg, red, yellow);
	 text-align: center;
	  position: fixed;
	  height:50px;
  top: 0;
  width: 100%;

	
}
header h1{
margin:0px;
padding:0px;
padding-top:10px;
	
}
nav{

}
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}
ul {
  position: fixed;
  top: 50px;
  width: 100%;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

/* Change the link color to #111 (black) on hover */
li a:hover {
  background-color: #111;
}

li {
  border-right: 1px solid #bbb;
}

li:last-child {
  border-right: none;
  float:right;
}

article{
	margin-top:100px;
	margin-left:10px;
	margin-right:10px;
	margin-bottom:30px;
}
article h1{
	text-align: center;
	background-color: #191970;
	color: #DCDCDC;
}

article h2{
	background-color: gray;	
		color: black;
}


footer{
	 position: fixed;
  bottom: 0px;
  width: 100%;
  text-align: right;
  background-color: Green;
  border-top:1px solid black;
}