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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 396 · 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 start? (a) space-between (b) center (c) flex-start (d) flex-end
  2. 2.💪 Which justify-content value puts boxes in the middle? (a) center (b) flex-start (c) flex-end (d) space-between
  3. 3.What does justify-content: flex-end 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
  4. 4.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  6. 6.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  7. 7.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  8. 8.💪 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).
  9. 9.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
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    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: 170px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  12. 12.💪 Which justify-content value equal gaps, none at ends? (a) center (b) space-between (c) flex-end (d) flex-start
  13. 13.💪 Which justify-content value packs boxes at the end? (a) space-between (b) center (c) flex-end (d) flex-start
  14. 14.💪 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).
  15. 15.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
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 260px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  17. 17.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  18. 18.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 260px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  19. 19.💪 Which flexbox property picks row or column? (a) gap (b) flex-direction (c) display: flex (d) justify-content
  20. 20.What does justify-content: center do? (a) puts boxes in the middle (b) packs boxes at the start (c) packs boxes at the end (d) equal gaps, none at ends
  21. 21.💪 Which flexbox property sets space between boxes? (a) justify-content (b) align-items (c) flex-direction (d) gap
  22. 22.💪 Which flexbox property turns on flexbox? (a) display: flex (b) justify-content (c) align-items (d) gap
  23. 23.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) justify-content (c) align-items (d) gap
  24. 24.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  25. 25.💪 Which flexbox property spaces boxes along a row? (a) display: flex (b) align-items (c) justify-content (d) flex-direction
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  27. 27.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  28. 28.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 210px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 220px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  31. 31.💪 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).
  32. 32.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 370px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  33. 33.💪 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).
  34. 34.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  35. 35.💪 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 80px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 440px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  39. 39.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  40. 40.💪 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 60px wide (no margins).

Answer key

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

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