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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 72 · 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.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  2. 2.💪 Which justify-content value packs boxes at the start? (a) flex-end (b) space-between (c) flex-start (d) center
  3. 3.💪 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).
  4. 4.💪 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).
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  7. 7.💪 Which flexbox property turns on flexbox? (a) align-items (b) flex-direction (c) display: flex (d) gap
  8. 8.What does justify-content: flex-start 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
  9. 9.💪 Which flexbox property sets space between boxes? (a) display: flex (b) flex-direction (c) justify-content (d) gap
  10. 10.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) flex-direction (c) justify-content (d) gap
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  13. 13.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 320px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  14. 14.💪 Which flexbox property picks row or column? (a) display: flex (b) justify-content (c) gap (d) flex-direction
  15. 15.💪 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).
  16. 16.What does justify-content: flex-end do? (a) puts boxes in the middle (b) packs boxes at the end (c) packs boxes at the start (d) equal gaps, none at ends
  17. 17.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 320px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  18. 18.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) flex-end (c) space-between (d) center
  19. 19.💪 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).
  20. 20.What does justify-content: center 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
  21. 21.💪 Which justify-content value packs boxes at the end? (a) center (b) space-between (c) flex-end (d) flex-start
  22. 22.💪 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).
  23. 23.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 270px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  25. 25.💪 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).
  26. 26.💪 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).
  27. 27.💪 Which justify-content value puts boxes in the middle? (a) center (b) flex-end (c) flex-start (d) space-between
  28. 28.What does justify-content: space-between 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
  29. 29.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px 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 2 boxes, each 60px wide (no margins).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  33. 33.💪 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).
  34. 34.💪 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 100px wide (no margins).
  35. 35.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 180px;
      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 40px wide (no margins).
  37. 37.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 380px;
      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: 170px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 270px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  40. 40.💪 Which flexbox property lines boxes up across? (a) display: flex (b) justify-content (c) flex-direction (d) align-items

Answer key

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

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