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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 142 · 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 puts boxes in the middle? (a) center (b) flex-start (c) space-between (d) flex-end
  2. 2.💪 Which flexbox property lines boxes up across? (a) display: flex (b) gap (c) flex-direction (d) align-items
  3. 3.💪 Which justify-content value packs boxes at the start? (a) flex-end (b) space-between (c) flex-start (d) center
  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.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
  6. 6.What does justify-content: flex-end do? (a) puts boxes in the middle (b) packs boxes at the start (c) equal gaps, none at ends (d) packs boxes at the end
  7. 7.What does justify-content: flex-start 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
  8. 8.💪 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 50px wide (no margins).
  9. 9.What does justify-content: space-between do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the end (d) packs boxes at the start
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  11. 11.💪 Which flexbox property turns on flexbox? (a) align-items (b) display: flex (c) flex-direction (d) justify-content
  12. 12.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  14. 14.💪 Which flexbox property spaces boxes along a row? (a) flex-direction (b) justify-content (c) align-items (d) gap
  15. 15.💪 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).
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  17. 17.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    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: 200px;
      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: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  21. 21.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 310px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  22. 22.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) space-between (c) center (d) flex-end
  23. 23.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 340px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  24. 24.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-end (c) space-between (d) flex-start
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 400px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-start;
    }
    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: 210px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  29. 29.💪 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).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 400px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  33. 33.💪 Which flexbox property sets space between boxes? (a) justify-content (b) align-items (c) gap (d) flex-direction
  34. 34.💪 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 80px wide (no margins).
  35. 35.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  37. 37.💪 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).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  40. 40.💪 Which flexbox property picks row or column? (a) justify-content (b) gap (c) flex-direction (d) align-items

Answer key

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

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