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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 909 · 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 justify-content value equal gaps, none at ends? (a) flex-end (b) space-between (c) flex-start (d) center
  2. 2.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 380px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  3. 3.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 460px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  4. 4.💪 Which justify-content value puts boxes in the middle? (a) flex-start (b) center (c) space-between (d) flex-end
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  7. 7.💪 Which flexbox property sets space between boxes? (a) align-items (b) gap (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 end (c) equal gaps, none at ends (d) packs boxes at the start
  9. 9.💪 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).
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  11. 11.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) center (c) flex-end (d) space-between
  12. 12.What does justify-content: flex-start do? (a) packs boxes at the end (b) equal gaps, none at ends (c) packs boxes at the start (d) puts boxes in the middle
  13. 13.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  14. 14.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      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: 300px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 110px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  17. 17.💪 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).
  18. 18.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) center (c) space-between (d) flex-end
  19. 19.What does justify-content: space-between do? (a) equal gaps, none at ends (b) packs boxes at the end (c) packs boxes at the start (d) puts boxes in the middle
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 250px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  21. 21.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  22. 22.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) display: flex (d) flex-direction
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  24. 24.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 120px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  25. 25.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 370px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  27. 27.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 350px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  31. 31.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  32. 32.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 360px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  34. 34.What does justify-content: center do? (a) equal gaps, none at ends (b) packs boxes at the end (c) packs boxes at the start (d) puts boxes in the middle
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  36. 36.💪 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).
  37. 37.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) align-items (c) justify-content (d) display: flex
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  39. 39.💪 Which flexbox property spaces boxes along a row? (a) gap (b) justify-content (c) display: flex (d) align-items
  40. 40.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 100px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).

Answer key

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

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