body {  
		  background: url(background.jpg) white;
		  color: black;
		  text-align: center;
}

A:link {
		  color: blue;
		  background: inherit;
		  font-size: 120%;
		  font-weight: bolder;
}

A:visited {
		  color: red;
		  background: inherit;
		  font-size: 120%;
		  font-weight: bolder;
		  
}

a:hover { 
		  background: yellow;
		  color: inherit;
}

.caption { 
		  width: 50%; 
		  padding-top: 0em;
		  padding-bottom: 1em;
		  text-align: center;
		  width: 100%;
}

div.space { padding-top: 5em; }

a#button1 {
  Display: block;
  background-image: url(./BlackAndWhite.jpg);
  width: 320px;
  height: 240px;
  margin: 0 auto;
}
a#button1:hover {
  background-image: url(./Color-Rusty.jpg);
}

a .alt { display: none; }