body{
    background-color: gainsboro;
    font-family: calibri;
    margin-top: 150px;
}

div {
  margin: 0 auto;
  width: 40%;
  padding: 25px 50px 25px 50px;
  background-color: white;
}

p {
  font-size: 16;
  line-height: 2.5;
}

ul {
  list-style-type: none;
  margin: 0 auto;
  width: 862;
  padding: 0;
  background-color: #333333;
  display: flex;
}

ul li a {
  display: block;
  color: white;
  padding: 14px 16px;
  text-decoration: none;
}

ul li a:hover {
  background-color: #111111;
}