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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 979 · 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 2 boxes, each 50px wide (no margins).
  2. 2.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  3. 3.💪 Which flexbox property turns on flexbox? (a) gap (b) display: flex (c) flex-direction (d) align-items
  4. 4.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 210px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  6. 6.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-end (c) flex-start (d) space-between
  7. 7.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) justify-content (c) align-items (d) display: flex
  8. 8.What does justify-content: flex-end do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the end (d) packs boxes at the start
  9. 9.What does justify-content: flex-start do? (a) puts boxes in the middle (b) packs boxes at the end (c) equal gaps, none at ends (d) packs boxes at the start
  10. 10.💪 Which flexbox property picks row or column? (a) align-items (b) flex-direction (c) display: flex (d) gap
  11. 11.💪 Which flexbox property spaces boxes along a row? (a) display: flex (b) align-items (c) gap (d) justify-content
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  13. 13.💪 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).
  14. 14.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 450px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 300px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  17. 17.💪 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).
  18. 18.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) flex-end (c) center (d) space-between
  19. 19.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  21. 21.💪 Which justify-content value equal gaps, none at ends? (a) flex-end (b) center (c) space-between (d) flex-start
  22. 22.💪 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).
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  24. 24.💪 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).
  25. 25.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) space-between (c) flex-start (d) center
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 400px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  30. 30.💪 Which flexbox property sets space between boxes? (a) align-items (b) justify-content (c) display: flex (d) gap
  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 50px wide (no margins).
  32. 32.💪 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).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 270px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  34. 34.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  35. 35.💪 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).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 460px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  38. 38.What does justify-content: center 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
  39. 39.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
  40. 40.💪 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).

Answer key

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

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