.generic-layout {
  outline: 4px solid blue;
}
.generic-layout,
.generic-layout .block {
  position: relative;
}
.generic-layout::before,
.generic-layout .block::before {
  position: absolute;
  content: attr(class);
  display: inline-block;
  padding: 5px;
  background-color: #f0f0f0;
  color: #333;
  font-size: 12px;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin-bottom: 10px;
}