html {
  height: 100%;
}

body {
  background-color: pink;
}

h1 {
  text-align: center;
  font-weight: bold;
}

p {
  font-size: 18px;
}


header {
  margin: 12px;

  ul {
    list-style-type: none;
    padding: 0;
  }

  li {
    display: inline;
    padding-left: 4px solid gray;
    padding-right: 4px solid gray;
  }
}