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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 607 · 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 end? (a) flex-start (b) flex-end (c) space-between (d) center
  2. 2.💪 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).
  3. 3.💪 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).
  4. 4.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-end (c) flex-start (d) space-between
  5. 5.💪 Which flexbox property turns on flexbox? (a) align-items (b) display: flex (c) gap (d) flex-direction
  6. 6.What does justify-content: flex-start do? (a) packs boxes at the start (b) packs boxes at the end (c) equal gaps, none at ends (d) puts boxes in the middle
  7. 7.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-start (c) flex-end (d) space-between
  8. 8.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  9. 9.💪 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).
  10. 10.💪 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).
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 460px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  12. 12.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  13. 13.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  14. 14.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  15. 15.💪 Which flexbox property spaces boxes along a row? (a) gap (b) display: flex (c) flex-direction (d) justify-content
  16. 16.What does justify-content: center do? (a) packs boxes at the start (b) packs boxes at the end (c) puts boxes in the middle (d) equal gaps, none at ends
  17. 17.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
  18. 18.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) flex-end (c) center (d) flex-start
  19. 19.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) align-items (c) gap (d) display: flex
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 480px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  21. 21.💪 Which flexbox property picks row or column? (a) flex-direction (b) align-items (c) justify-content (d) display: flex
  22. 22.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 500px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  23. 23.💪 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).
  24. 24.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 120px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  27. 27.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  28. 28.💪 Which flexbox property sets space between boxes? (a) align-items (b) justify-content (c) gap (d) display: flex
  29. 29.💪 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 100px wide (no margins).
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  31. 31.💪 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).
  32. 32.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 120px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  37. 37.What does justify-content: space-between 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
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 170px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  40. 40.💪 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 40px wide (no margins).

Answer key

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

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