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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 503 · 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.💪 Which flexbox property spaces boxes along a row? (a) gap (b) flex-direction (c) justify-content (d) display: flex
  2. 2.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  3. 3.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  4. 4.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-start (c) flex-end (d) space-between
  5. 5.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  7. 7.💪 Which flexbox property lines boxes up across? (a) align-items (b) justify-content (c) display: flex (d) flex-direction
  8. 8.What does justify-content: flex-end 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
  9. 9.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  10. 10.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 320px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  11. 11.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-start (c) flex-end (d) space-between
  12. 12.💪 Which flexbox property sets space between boxes? (a) justify-content (b) align-items (c) gap (d) display: flex
  13. 13.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) center (c) space-between (d) flex-end
  14. 14.💪 Which flexbox property turns on flexbox? (a) display: flex (b) align-items (c) flex-direction (d) justify-content
  15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  17. 17.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  19. 19.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) center (c) flex-start (d) flex-end
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  21. 21.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  22. 22.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  23. 23.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    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: 260px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  27. 27.What does justify-content: center do? (a) equal gaps, none at ends (b) puts boxes in the middle (c) packs boxes at the end (d) packs boxes at the start
  28. 28.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  29. 29.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) justify-content (d) flex-direction
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 260px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  31. 31.What does justify-content: flex-start do? (a) packs boxes at the start (b) puts boxes in the middle (c) equal gaps, none at ends (d) packs boxes at the end
  32. 32.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 420px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px 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 left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  39. 39.What does justify-content: space-between do? (a) puts boxes in the middle (b) packs boxes at the start (c) equal gaps, none at ends (d) packs boxes at the end
  40. 40.💪 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).

Answer key

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

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