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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 585 · 40 questions
TalentJR

Code tip (Find the free space): Free space = container width − number of boxes × box width. flex-start: all free space after the last box; flex-end: all before the first box; center: half on each side. space-between: free space ÷ (boxes − 1) between each pair, none at the ends.

NameDateTime takenScore ___ / 40
  1. 1.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  2. 2.What does justify-content: space-between do? (a) puts boxes in the middle (b) packs boxes at the start (c) packs boxes at the end (d) equal gaps, none at ends
  3. 3.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 400px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  4. 4.What does justify-content: center do? (a) puts boxes in the middle (b) packs boxes at the end (c) packs boxes at the start (d) equal gaps, none at ends
  5. 5.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  6. 6.💪 Which flexbox property spaces boxes along a row? (a) display: flex (b) align-items (c) justify-content (d) flex-direction
  7. 7.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) justify-content (c) gap (d) align-items
  8. 8.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  9. 9.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  10. 10.💪 Which justify-content value puts boxes in the middle? (a) flex-start (b) flex-end (c) center (d) space-between
  11. 11.💪 Which justify-content value packs boxes at the end? (a) flex-end (b) flex-start (c) center (d) space-between
  12. 12.What does justify-content: flex-end do? (a) puts boxes in the middle (b) packs boxes at the end (c) packs boxes at the start (d) equal gaps, none at ends
  13. 13.💪 Which flexbox property picks row or column? (a) align-items (b) flex-direction (c) justify-content (d) gap
  14. 14.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 420px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  17. 17.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  18. 18.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-end (c) center (d) flex-start
  19. 19.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 120px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  20. 20.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 370px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  21. 21.💪 Which flexbox property sets space between boxes? (a) align-items (b) justify-content (c) flex-direction (d) gap
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  23. 23.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  25. 25.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-start (c) flex-end (d) space-between
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 370px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  27. 27.💪 Which flexbox property turns on flexbox? (a) gap (b) justify-content (c) display: flex (d) align-items
  28. 28.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  29. 29.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 110px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  31. 31.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 300px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 110px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  35. 35.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  37. 37.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  40. 40.What does justify-content: flex-start do? (a) puts boxes in the middle (b) packs boxes at the start (c) packs boxes at the end (d) equal gaps, none at ends

Answer key

  1. 20
  2. equal gaps, none at ends
  3. 80
  4. puts boxes in the middle
  5. 20
  6. justify-content
  7. align-items
  8. 80
  9. 20
  10. center
  11. flex-end
  12. packs boxes at the end
  13. flex-direction
  14. 40
  15. 20
  16. 60
  17. 40
  18. flex-start
  19. 40
  20. 50
  21. gap
  22. 50
  23. 60
  24. 20
  25. space-between
  26. 70
  27. display: flex
  28. 10
  29. 30
  30. 30
  31. 60
  32. 30
  33. 50
  34. 70
  35. 60
  36. 40
  37. 40
  38. 80
  39. 10
  40. packs boxes at the start

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