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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 9 · 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 packs boxes at the end? (a) space-between (b) center (c) flex-start (d) flex-end
  2. 2.💪 Which flexbox property picks row or column? (a) display: flex (b) justify-content (c) align-items (d) flex-direction
  3. 3.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-end (c) space-between (d) flex-start
  4. 4.💪 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).
  5. 5.💪 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 60px wide (no margins).
  6. 6.💪 Which flexbox property lines boxes up across? (a) gap (b) flex-direction (c) display: flex (d) align-items
  7. 7.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) space-between (c) flex-start (d) center
  8. 8.What does justify-content: center 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
  9. 9.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) center (c) flex-start (d) flex-end
  10. 10.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 380px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  11. 11.What does justify-content: flex-end 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
  12. 12.💪 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).
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  14. 14.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 360px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  17. 17.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) display: flex (c) justify-content (d) flex-direction
  18. 18.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) align-items (c) justify-content (d) display: flex
  19. 19.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
  20. 20.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 140px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  21. 21.What does justify-content: flex-start 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
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  25. 25.💪 Which flexbox property sets space between boxes? (a) display: flex (b) gap (c) justify-content (d) flex-direction
  26. 26.💪 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).
  27. 27.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 530px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 430px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 100px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px 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 wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 300px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  33. 33.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  34. 34.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 280px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  35. 35.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 390px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  36. 36.💪 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).
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 330px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  40. 40.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).

Answer key

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

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