* {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  background: rgb(50, 50, 50);
}

header {
  width: 80%;
  margin: 30px auto;
}

h1 {
  color: white;
}

h2 {
  color: ghostwhite;
}

section.contents {
  width: 80%;
  margin: 0 auto;
}

div.box {
  width: 30%;
  float: left;
  margin-right: 3%;
  color: gray;
}

div.box a {
  color: cyan;
}