.bluebox {
  padding: 1em;
  background-color: #f0f8ff;
  border: 1px solid #007bff;
  border-left: 6px solid #007bff;
  border-radius: 4px;
}

/* FIX: Removes default paragraph margin at the bottom of the box */
.bluebox > p:last-child {
  margin-bottom: 0;
}

.graybox {
  padding: 1em;
  background-color: #f1f1f1;
  border: 1px solid #d3d3d3;
  border-left: 6px solid #d3d3d3;
  border-radius: 4px;
}

/* FIX: Removes default paragraph margin at the bottom of the box */
.graybox > p:last-child {
  margin-bottom: 0;
}