html, body {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
}

a {
  text-decoration: none;
  color: #a3c7ff;
}
a:hover {
  text-decoration: underline;
}

img {
  border: 0;
}

#wrapper {
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  text-align: center;
  color: #fff;
  background: #4e54c8;
  width: 100%;
  min-height: 100%;
}

#logo {
  width: 160px;
}

#certifications {
  width: 300px;
}

#freebsd {
  width: 80px;
}

#certifications, #freebsd {
  border-radius: 5px;
}

@media (min-width: 768px) {
  #wrapper {
    font-size: 2.0em;
  }

  #logo {
    width: 400px;
  }

  #certifications {
    width: 400px;
  }

  #freebsd {
    width: 120px;
  }
}