header
{
  position: fixed;
  Top: 0;
  Width: 960px;
  height: 200px;
  text-align: center;
  color: navy;
  background-color: azure;
  z-index:2;  
}

ul
{
  list-style-type: none;
  position: fixed;
  top: 180px;
  left: 0;
  padding: 2px;
  background-color: Navy;
  width: 100%;
}
 
li
{
  float: left;
}

.article
{
  position: relative;
  top: 230px;
  margin: 10px;
  padding: 10px;
  width: 910px;
  background-color: white;
  z-index: 1;
}


.footer
{
  position: fixed;
  bottom: 0px;
  left: 0px;
  width: 960px;
  background-color: navy;
  text-align: Center;
  font-size: 12px;
  color: white;
  z-index:2;
}

body
{
  background-color: azure;
}

H1
{
  color: navy;
}

p
{
  font-size:16px;
  color: navy;
}

.button
{
  border: none;
  padding: 6px 26px;
  text-align: center;
}

.button1
{
  background-color: Azure;
  colour: Navy;
}

.button2
{
  background-color: Navy;
  color: White;
}

.button2:hover
{ 
  background-color: LightSkyBlue;
}

.button3
{
  background-color: Navy;
  color: White;
}

.dropbtn
{
  position: relative;
  display: inline-block;
}

.dropdown
{
  display:none;
  position:absolute;
  backgound-color:LightSkyBlue;
  min-width:200px;
  box-shadow: 0px 2px 4px 0px rgba(0,0,0.2);
  z-index: 1;
}

.dropdown a
{
  background-color: LightSkyBlue;
  color: White;
  padding: 4px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

.dropbtn:hover .button3
{
  background-color: LightSkyBlue;
}

.dropbtn:hover .dropdown
{
  display: block;
}

.dropdown a:hover
{
  background-color: LightBlue;
}

.row1
{
  background-color: Navy;
  Color: white;
  padding: 8px 8px;
}

.row2
{
  background-color: Azure;
  Color: Navy;
  padding: 8px 8px;
}

.row3
{
  Color: Navy;
  padding: 8px 8px;
}

.table
{
  border: 1px solid LightBlue;
}