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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 747 · 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) space-between (d) center
  2. 2.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 310px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  3. 3.💪 Which flexbox property lines boxes up across? (a) display: flex (b) flex-direction (c) align-items (d) gap
  4. 4.What does justify-content: space-between do? (a) equal gaps, none at ends (b) packs boxes at the end (c) puts boxes in the middle (d) packs boxes at the start
  5. 5.What does justify-content: flex-start 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
  6. 6.💪 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).
  7. 7.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 350px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  8. 8.💪 Which flexbox property spaces boxes along a row? (a) flex-direction (b) gap (c) align-items (d) justify-content
  9. 9.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  10. 10.💪 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).
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  12. 12.What does justify-content: flex-end do? (a) equal gaps, none at ends (b) puts boxes in the middle (c) packs boxes at the end (d) packs boxes at the start
  13. 13.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  14. 14.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 560px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  15. 15.💪 Which flexbox property turns on flexbox? (a) align-items (b) flex-direction (c) display: flex (d) justify-content
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  17. 17.💪 Which justify-content value equal gaps, none at ends? (a) flex-end (b) flex-start (c) center (d) space-between
  18. 18.What does justify-content: center do? (a) equal gaps, none at ends (b) puts boxes in the middle (c) packs boxes at the end (d) packs boxes at the start
  19. 19.💪 Which justify-content value packs boxes at the end? (a) center (b) space-between (c) flex-start (d) flex-end
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  21. 21.💪 Which flexbox property picks row or column? (a) align-items (b) flex-direction (c) gap (d) display: flex
  22. 22.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-start (c) flex-end (d) space-between
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  24. 24.💪 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).
  25. 25.💪 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).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      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: 300px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  30. 30.💪 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).
  31. 31.💪 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).
  32. 32.💪 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 60px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 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).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  37. 37.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  38. 38.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 280px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 240px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  40. 40.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).

Answer key

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

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