* {
  box-sizing: border-box;
}

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

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

nav {
  width: 100%;
  display: flex;
  justify-content: space-between;
  background: #0063B1;
}

nav h1 {
  margin: 0;
  color: #ffffff;
  align-self: center;
  padding-left: 0.5rem;
}

nav ul {
  display: flex;
  align-items: center;
  margin: 0;
}

nav ul li {
  list-style: none;
}

nav ul li:hover {
  background: rgba(255, 255, 255, .25);
}

nav ul li a {
  color: #ffffff;
  display: block;
  text-decoration: none;
  padding: 1rem 1rem;
}

a.btn {
  text-decoration: none;
}

.btn {
  display: inline-block;
  cursor: pointer;
  padding: .5rem 1rem;
  font-size: 1.05rem;
  line-height: 1.5;
  border-radius: .3rem;
  border: 1px solid transparent;
}

.btn-primary {
  color: #fff;
  background-color: #007bff;
  border-color: #007bff;
}

.btn-primary:active {
  background-color: #0062cc;
  border-color: #005cbf;
}

.btn-outline-primary {
  color: #007bff;
  border-color: #007bff;
}
.btn-outline-primary:active {
  color: #fff;
  background-color: #007bff;
  border-color: #007bff;
}

#content {
  margin-top: 2rem;
  padding: 0rem 1rem;
}

#greeting {
  margin-top: 1rem;
  padding: 0rem 1rem;
}