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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 186 · 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: space-between do? (a) equal gaps, none at ends (b) packs boxes at the start (c) puts boxes in the middle (d) packs boxes at the end
  2. 2.💪 Which justify-content value packs boxes at the start? (a) flex-end (b) flex-start (c) space-between (d) center
  3. 3.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  4. 4.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  5. 5.💪 Which flexbox property picks row or column? (a) flex-direction (b) align-items (c) display: flex (d) gap
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  7. 7.💪 Which flexbox property sets space between boxes? (a) flex-direction (b) display: flex (c) align-items (d) gap
  8. 8.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) flex-start (c) flex-end (d) center
  9. 9.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  10. 10.What does justify-content: flex-end do? (a) packs boxes at the start (b) equal gaps, none at ends (c) packs boxes at the end (d) puts boxes in the middle
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 460px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 290px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  14. 14.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) align-items (c) display: flex (d) gap
  15. 15.💪 Which flexbox property spaces boxes along a row? (a) flex-direction (b) justify-content (c) gap (d) display: flex
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  17. 17.💪 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).
  18. 18.💪 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).
  19. 19.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  20. 20.What does justify-content: flex-start do? (a) packs boxes at the end (b) puts boxes in the middle (c) packs boxes at the start (d) equal gaps, none at ends
  21. 21.💪 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).
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      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: 230px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  24. 24.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 100px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  25. 25.💪 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).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 320px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  28. 28.What does justify-content: center do? (a) equal gaps, none at ends (b) packs boxes at the start (c) packs boxes at the end (d) puts boxes in the middle
  29. 29.💪 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).
  30. 30.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-end (c) space-between (d) flex-start
  31. 31.💪 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).
  32. 32.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) space-between (c) center (d) flex-end
  33. 33.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 140px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 290px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  36. 36.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px 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 4 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-end;
    }
    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: 230px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  40. 40.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).

Answer key

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

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