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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 252 · 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) flex-end (b) flex-start (c) center (d) space-between
  2. 2.💪 Which flexbox property sets space between boxes? (a) align-items (b) justify-content (c) gap (d) display: flex
  3. 3.What does justify-content: center 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
  4. 4.💪 Which flexbox property spaces boxes along a row? (a) gap (b) align-items (c) display: flex (d) justify-content
  5. 5.💪 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).
  6. 6.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) display: flex (c) justify-content (d) gap
  7. 7.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
  8. 8.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  9. 9.What does justify-content: space-between 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
  10. 10.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) space-between (c) flex-end (d) center
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  12. 12.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      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: 200px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  15. 15.💪 Which flexbox property picks row or column? (a) display: flex (b) align-items (c) gap (d) flex-direction
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  17. 17.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 240px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px 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 50px wide (no margins).
  19. 19.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 390px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 250px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  21. 21.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 130px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  22. 22.💪 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).
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 400px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  24. 24.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  25. 25.💪 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).
  26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 100px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px 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 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).
  29. 29.💪 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).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 500px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  31. 31.💪 Which flexbox property lines boxes up across? (a) align-items (b) display: flex (c) justify-content (d) gap
  32. 32.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 470px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  36. 36.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) space-between (c) flex-end (d) center
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  38. 38.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) flex-end (c) space-between (d) center
  39. 39.💪 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).
  40. 40.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).

Answer key

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

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