html {
  font-family: sans-serif;
}

h1,h2 {
  text-align: center;
}

article {
  width: 400px;
  min-height: 480px;
  margin: 0 auto;
  padding: 10px;
  background-image: repeating-linear-gradient(to bottom, transparent 1px, transparent 20px, rgb(0,0,150) 21px),
                    linear-gradient(to bottom right, white, #ccc);
  border-radius: 20px;
  box-shadow: 5px 5px 10px rgba(0,0,0,0.7);
  line-height: 1.5;
}

ul {
  list-style-type: none;
  padding-left: 0;
  width: 480px;
  margin: 0 auto;
  padding-bottom: 30px;
}

li {
  float: left;
  width: 33%;
}

ul li a {
  display: block;
  text-align: center;
  color: blue;
  text-decoration: underline;
  cursor: pointer;
}

ul li a:hover, ul li a:focus {
  text-decoration: none;
}