.article h1{
  margin:0 4px 12px 4px;
  letter-spacing:1px;
}
.article h2{
  text-align:center;
}
.article h3{
  border-bottom:5px solid #ccc;
  padding:0px;
}
.article h4{
  border-bottom:1px dotted #ccc;
}
.article .image_caption{
  text-align:center;
}
.article li{
  margin: .4rem 0;
}
.article img{
  border: #ccc 1px solid;
}