html {
  background-color: whitesmoke;
}
body {
  padding-top: 40px;
  padding-left: 40px;
  padding-right: 40px;
  font-family: "Open Sans", sans-serif;
  font-size: 22px;
  line-height: 24px;
  color: grey;
  width: 840px;
  text-align: center;
  margin: auto;
  background-color: white;
  position: relative;
}
header {
  display: flex;
  color: #fff;
  margin: 0 auto;
  width: 840px;
  height: 500px;
  background: url(https://github.com/formacion-web/recepta/blob/master/images/apple-pie.jpg?raw=true);
  background-size: cover;
  justify-content: center;
  font-size: 150%;
  position: relative;
}

#title {
  line-height: 450px;
  text-align: center;
  color: white;
  font-size: 200%;
}

main {
  font-size: 85%;
  margin-left: 80px;
  margin-right: 80px;
  margin-top: 50px;
  padding-bottom: 80px;
  text-align: left;
}
img {
  width: 45%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
  margin-top: 35px;
  margin-bottom: 25px;
  display: block;
}

h2 {
  margin-left: 25px;
  margin-top: 25px;
}
ul {
  list-style-type: none;
}
ul li:before {
  content: "- ";
}

ol {
  counter-reset: list;
}
ol > li {
  list-style: none;
}
ol > li:before {
  content: counter(list) ") ";
  counter-increment: list;
}
hr {
  color: grey;
}

ul,
ol {
  line-height: 22px;
  padding-left: 10px;
  font-size: 0.85em;
}
.instructions {
  line-height: 40px;
  color: black;
  margin-top: 30px;
}