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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 755 · 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) puts boxes in the middle (b) packs boxes at the end (c) equal gaps, none at ends (d) packs boxes at the start
  2. 2.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
  3. 3.💪 Which justify-content value equal gaps, none at ends? (a) flex-end (b) space-between (c) flex-start (d) center
  4. 4.What does justify-content: flex-start 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
  5. 5.💪 Which flexbox property turns on flexbox? (a) align-items (b) display: flex (c) gap (d) flex-direction
  6. 6.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) flex-direction (c) gap (d) justify-content
  7. 7.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  8. 8.💪 Which flexbox property lines boxes up across? (a) justify-content (b) align-items (c) gap (d) flex-direction
  9. 9.What does justify-content: flex-end 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
  10. 10.💪 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).
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 100px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  13. 13.💪 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).
  14. 14.💪 Which flexbox property picks row or column? (a) align-items (b) flex-direction (c) gap (d) display: flex
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  16. 16.💪 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).
  17. 17.💪 Which justify-content value packs boxes at the start? (a) space-between (b) center (c) flex-start (d) flex-end
  18. 18.💪 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).
  19. 19.💪 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).
  20. 20.💪 Which justify-content value packs boxes at the end? (a) space-between (b) flex-end (c) flex-start (d) center
  21. 21.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) center (c) flex-end (d) flex-start
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  23. 23.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  25. 25.💪 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).
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  27. 27.💪 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).
  28. 28.💪 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).
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 250px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  30. 30.💪 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).
  31. 31.💪 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).
  32. 32.💪 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).
  33. 33.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 330px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px 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 60px wide (no margins).
  38. 38.💪 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).
  39. 39.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  40. 40.💪 Which flexbox property sets space between boxes? (a) display: flex (b) flex-direction (c) gap (d) align-items

Answer key

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

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