img.logo {
  height: 330px;
  left: 50%;
  margin-top: -165px;
  margin-left: -165px;
  position: absolute;
  top: 50%;
  width: 330px;
}

ul.social {
  list-style-type: none;
  position: absolute;
  top: calc(50% + 200px);
  left: 50%;
  margin-left: -92px;
  padding: 0px 0px 0px 0px;
}

.social li {
  display: inline-block;
}

.social img {
  width: 50px;
  height: 50px;
  margin: 20px 20px 20px 20px;
}

body {
  background-color: #F3F3F3;
  margin: 0 auto;
  max-width: 50em;
  font-family: "Helvetica", "Arial", sans-serif;
  line-height: 1.5;
  padding: 4em 1em;
  color: #555;
}

h2 {
  text-align: center;
  margin-top: 1em;
  padding-top: 1em;
}

h1,
h2,
strong {
  color: #333;
}