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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 724 · 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: 170px;
      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) space-between (b) flex-start (c) center (d) flex-end
  3. 3.💪 Which flexbox property picks row or column? (a) align-items (b) flex-direction (c) display: flex (d) justify-content
  4. 4.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) flex-end (c) center (d) space-between
  5. 5.💪 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).
  6. 6.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-start (c) space-between (d) flex-end
  7. 7.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) center (d) space-between
  8. 8.What does justify-content: center do? (a) packs boxes at the start (b) equal gaps, none at ends (c) packs boxes at the end (d) puts boxes in the middle
  9. 9.💪 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).
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  11. 11.💪 Which flexbox property sets space between boxes? (a) gap (b) flex-direction (c) display: flex (d) align-items
  12. 12.💪 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).
  13. 13.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 450px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  14. 14.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  15. 15.💪 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).
  16. 16.💪 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).
  17. 17.💪 Which flexbox property turns on flexbox? (a) align-items (b) gap (c) display: flex (d) flex-direction
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  19. 19.What does justify-content: space-between do? (a) packs boxes at the start (b) equal gaps, none at ends (c) packs boxes at the end (d) puts boxes in the middle
  20. 20.💪 Which flexbox property lines boxes up across? (a) align-items (b) gap (c) flex-direction (d) display: flex
  21. 21.What does justify-content: flex-end do? (a) packs boxes at the start (b) equal gaps, none at ends (c) puts boxes in the middle (d) packs boxes at the end
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  23. 23.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  24. 24.💪 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 60px wide (no margins).
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  26. 26.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 320px;
      justify-content: center;
    }
    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: 160px;
      justify-content: flex-end;
    }
    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: 460px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  30. 30.💪 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).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    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: 140px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  33. 33.💪 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).
  34. 34.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 130px;
      justify-content: space-between;
    }
    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: 180px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  36. 36.💪 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 50px wide (no margins).
  37. 37.What does justify-content: flex-start 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
  38. 38.💪 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 50px wide (no margins).
  39. 39.💪 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).
  40. 40.💪 Which flexbox property spaces boxes along a row? (a) flex-direction (b) display: flex (c) justify-content (d) align-items

Answer key

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

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