body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: #4a4a4a;
}
h1 {
  font-size: 30px;
}
h2 {
  font-size: 24px;
}
h3 {
  font-size: 20px;
}
h4 {
  font-size: 18px;
}
h5 {
  font-size: 16px;
}
h6 {
  font-size: 15px;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: bold;
}

.w3-upper {
  text-transform: uppercase;
}
.w3-shadow {
  text-shadow: 1px 1px 1px rgb(0, 0, 0);
}
.w3-nolink {
  text-decoration: none;
}