1. Jigsaw, px=pixel, the red square
  2. Four squares
  3. CSS grid, gridRowStart, gridColumnStart
  4. pieces.js
  5. index.html, styles.css
  6. index.html, scramble.js
  7. piece_clicked.js
  8. highlight
  9. outline, finished.js
  10. The Real Thing, 1.jpg
  11. picture with edges, outline pieces
  12. The finishing touches, piece_clicked.js
  13. index.html, styles.css, finale.js
  14. 2.jpg, g_pics, g_n
  15. pieces.js
  16. pic_clicked.js, camelCase