body {
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
  background: #fff;
}

h1,
h2,
h3,
h4,
.nav-link {
  color: #222;
}

h1 {
  font-size: 2.2rem;
  font-weight: 600;
}

h4 {
  font-size: 1.35rem;
  line-height: 1.35;
  font-weight: 600;
}

p,
li {
  line-height: 1.6;
  font-size: 1rem;
}

.navbar {
  border-bottom: 1px solid #ececec;
}

.nav-link {
  font-size: 1.1rem;
  font-weight: 600;
}

img {
  max-width: 100%;
  height: auto;
}

.jumbotron {
  margin-bottom: 0;
}