h1, h2, h3, h4, h5, h6 {
  margin-top: 1rem;
}
h2 {
  font-size: 1.5rem;
  font-weight: bold;
  display: flex;
  align-items: center;
}
h2:before, h2:after {
  content: "";
  flex-grow: 1;
  height: 1px;
  background: #444;
  display: block;
}
h2:before {
  margin-right: .4em;
}
h2:after {
  margin-left: .4em;
}
h3 {
  font-size: 1.4rem;
  padding: 1rem .5rem;
  border-left: 5px solid #000;
  border-radius: 5px;
  background: #f4f4f4;
}
h4 {
  font-size: 1.3rem;
  padding: .5rem;
  border-top: solid 3px #444;
  border-bottom: solid 3px #444;
}
h5 {
  font-size: 1.2rem;
  padding: .5rem;
  border-bottom: 3px dotted #000;
  background: #f4f4f4;
}
h6 {
  font-size: 1.1rem;
  padding: .5rem;
  border-bottom: solid 1px #444;
}
strong {
  font-weight: 700;
}
@media(max-width: 992px) {
  nav .brand-logo {
    font-size: 1.2rem;
  }
}
.container {
  max-width: 1000px;
}
.collapsible-body {
  padding: 1rem;
}
.row {
  margin-bottom: 0;
}
#before, #after {
  border: 1px solid #f4f4f4;
  border-radius: 10px;
  padding: 1rem;
  margin: 1rem auto;
}
.handle {
  cursor: move;
  padding-right: 1rem;
}
.display-none {
  display: none;
}
.btn {
  margin-bottom: 1rem;
}