ul, ul li {
  list-style: none;
  display: block;
  margin: 0;
  padding: 0;  
}


ul li a:link, ul li a:visited {
  text-decoration: none;
  width:100px;
  display: block;
  background-color: red;
  color: yellow;
  padding: 5;
  margin: 5;
  border: 2px solid black;
}

ul li a:hover {
  width: 85px;
  background-color: white;
  color: black;
  font-weight: bold;
  padding-left: 20;
}