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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 99 · 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 picks row or column? (a) display: flex (b) gap (c) flex-direction (d) justify-content
  2. 2.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 270px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  3. 3.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 270px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  4. 4.What does justify-content: space-between do? (a) packs boxes at the start (b) equal gaps, none at ends (c) puts boxes in the middle (d) packs boxes at the end
  5. 5.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  6. 6.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  7. 7.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  8. 8.What does justify-content: center do? (a) packs boxes at the end (b) packs boxes at the start (c) equal gaps, none at ends (d) puts boxes in the middle
  9. 9.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  10. 10.What does justify-content: flex-end do? (a) equal gaps, none at ends (b) packs boxes at the end (c) puts boxes in the middle (d) packs boxes at the start
  11. 11.💪 Which flexbox property spaces boxes along a row? (a) display: flex (b) gap (c) justify-content (d) align-items
  12. 12.💪 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).
  13. 13.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) flex-end (c) flex-start (d) center
  14. 14.💪 Which justify-content value packs boxes at the end? (a) flex-end (b) center (c) flex-start (d) space-between
  15. 15.💪 Which justify-content value packs boxes at the start? (a) space-between (b) center (c) flex-end (d) flex-start
  16. 16.What does justify-content: flex-start do? (a) packs boxes at the end (b) packs boxes at the start (c) puts boxes in the middle (d) equal gaps, none at ends
  17. 17.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  18. 18.💪 Which flexbox property lines boxes up across? (a) display: flex (b) align-items (c) flex-direction (d) gap
  19. 19.💪 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 80px wide (no margins).
  20. 20.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 250px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  21. 21.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  22. 22.💪 Which flexbox property turns on flexbox? (a) display: flex (b) align-items (c) justify-content (d) gap
  23. 23.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 140px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  24. 24.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) flex-start (c) flex-end (d) center
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  28. 28.💪 Which flexbox property sets space between boxes? (a) display: flex (b) flex-direction (c) justify-content (d) gap
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  33. 33.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  35. 35.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 280px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  36. 36.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  37. 37.💪 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).
  38. 38.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  39. 39.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  40. 40.💪 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).

Answer key

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

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