These are sidebars. The blue box is NOT within the the larger box and it should NOT be placed there under an circumstances. The transcriber brailles what the print shows. It is doubtful that the fact that the box is blue adds any information and it is probably just a visual device. The blue box apparently draws visual attention to the words in the notebook box that are in fact highlighted. I would braille the blue box as a blocked paragraph, followed by the boxed list, with the highlighted words in the box also highlighted in braille. That is what the print shows. Place each paragraph and box pair at logical places in the print. They do not necessarily have to follow each other, but each box should be accompanied by its preceding paragraph.