#hover {
	font-weight: bold;
  text-transform: uppercase;
  font-family: sans-serif;
}
#hover:hover {
	background-color: yellow;
}

#btn-pseudo {
	background-color: red;
  color: white;
  text-transform: uppercase;
  padding: 0.5em 1em;
  border: 1px solid transparent;
}
#btn-pseudo:hover {
	background-color: blue;
}
#btn-pseudo:focus {
	background-color: green;
}

a:link {
	color: teal;
}
a:visited {
	color: red;
}