body {
  margin: 0;
}

header {
  background-color: darkslategrey;
  color: lightblue;
  text-align: center;
  padding: 50px 0;
}

.intro {
  color: blueviolet;
  text-align: center;
  margin: 50px auto;
}

.skills {
  background-color: brown;
  color: white;
  padding: 50px;
  text-align: center;
}

.columns {
  display: flex;
  justify-content: center;
}

.column {
  margin: 0 10px;
}