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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 879 · 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.What does justify-content: space-between do? (a) equal gaps, none at ends (b) packs boxes at the start (c) packs boxes at the end (d) puts boxes in the middle
  2. 2.💪 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).
  3. 3.💪 Which flexbox property turns on flexbox? (a) gap (b) display: flex (c) align-items (d) justify-content
  4. 4.💪 Which justify-content value packs boxes at the end? (a) flex-end (b) space-between (c) flex-start (d) center
  5. 5.What does justify-content: flex-end 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
  6. 6.What does justify-content: center do? (a) equal gaps, none at ends (b) packs boxes at the start (c) packs boxes at the end (d) puts boxes in the middle
  7. 7.💪 Which flexbox property spaces boxes along a row? (a) display: flex (b) align-items (c) gap (d) justify-content
  8. 8.💪 Which justify-content value puts boxes in the middle? (a) flex-start (b) space-between (c) center (d) flex-end
  9. 9.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) space-between (c) flex-end (d) center
  10. 10.💪 Which justify-content value packs boxes at the start? (a) center (b) flex-start (c) space-between (d) flex-end
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  12. 12.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 410px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  13. 13.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 370px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  14. 14.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  16. 16.💪 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).
  17. 17.What does justify-content: flex-start do? (a) packs boxes at the end (b) equal gaps, none at ends (c) packs boxes at the start (d) puts boxes in the middle
  18. 18.💪 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 40px wide (no margins).
  19. 19.💪 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).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  21. 21.💪 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).
  22. 22.💪 Which flexbox property picks row or column? (a) display: flex (b) align-items (c) flex-direction (d) justify-content
  23. 23.💪 Which flexbox property lines boxes up across? (a) justify-content (b) align-items (c) flex-direction (d) gap
  24. 24.💪 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).
  25. 25.💪 Which flexbox property sets space between boxes? (a) align-items (b) justify-content (c) flex-direction (d) gap
  26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-end;
    }
    Inside are 3 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 2 boxes, each 100px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 90px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  29. 29.💪 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).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    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: 230px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  36. 36.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  37. 37.💪 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).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  40. 40.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 220px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).

Answer key

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

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