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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 805 · 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 before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  2. 2.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  3. 3.💪 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).
  4. 4.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 520px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  5. 5.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) space-between (c) flex-end (d) center
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  7. 7.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 100px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  8. 8.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) display: flex (d) flex-direction
  9. 9.💪 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).
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 350px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  11. 11.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 580px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  12. 12.💪 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).
  13. 13.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) display: flex (c) justify-content (d) gap
  14. 14.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) space-between (c) center (d) flex-end
  15. 15.What does justify-content: center do? (a) packs boxes at the end (b) equal gaps, none at ends (c) puts boxes in the middle (d) packs boxes at the start
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  17. 17.💪 Which flexbox property lines boxes up across? (a) justify-content (b) align-items (c) gap (d) flex-direction
  18. 18.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  19. 19.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 320px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  20. 20.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
  21. 21.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) space-between (c) center (d) flex-end
  22. 22.💪 Which flexbox property turns on flexbox? (a) gap (b) flex-direction (c) align-items (d) display: flex
  23. 23.What does justify-content: flex-end 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
  24. 24.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) space-between (d) center
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  26. 26.What does justify-content: space-between 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
  27. 27.💪 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).
  28. 28.💪 Which flexbox property sets space between boxes? (a) display: flex (b) gap (c) align-items (d) flex-direction
  29. 29.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  31. 31.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  33. 33.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 330px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  37. 37.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  40. 40.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).

Answer key

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

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