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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 68 · 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.What does justify-content: flex-start 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
  2. 2.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-end (c) flex-start (d) space-between
  3. 3.💪 Which justify-content value packs boxes at the end? (a) space-between (b) flex-end (c) flex-start (d) center
  4. 4.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) flex-direction (c) display: flex (d) justify-content
  5. 5.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  6. 6.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) display: flex (c) align-items (d) justify-content
  7. 7.What does justify-content: flex-end do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the start (d) packs boxes at the end
  8. 8.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 270px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  9. 9.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 330px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  10. 10.💪 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).
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  12. 12.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 360px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  13. 13.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 170px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  14. 14.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  15. 15.What does justify-content: center do? (a) packs boxes at the end (b) puts boxes in the middle (c) equal gaps, none at ends (d) packs boxes at the start
  16. 16.What does justify-content: space-between 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 much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  18. 18.💪 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 40px wide (no margins).
  19. 19.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  20. 20.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) display: flex (d) flex-direction
  21. 21.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) center (d) space-between
  22. 22.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  23. 23.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-end (c) flex-start (d) space-between
  24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  25. 25.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: center;
    }
    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: 140px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  28. 28.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 320px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  29. 29.💪 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).
  30. 30.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  31. 31.💪 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).
  32. 32.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 400px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  33. 33.💪 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 50px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  37. 37.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 220px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  40. 40.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 280px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).

Answer key

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

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