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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 39 · 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: 230px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  2. 2.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) center (c) flex-start (d) flex-end
  3. 3.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 200px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  4. 4.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 320px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  5. 5.💪 Which justify-content value packs boxes at the end? (a) space-between (b) flex-end (c) center (d) flex-start
  6. 6.💪 Which flexbox property turns on flexbox? (a) gap (b) justify-content (c) align-items (d) display: flex
  7. 7.What does justify-content: flex-start do? (a) equal gaps, none at ends (b) packs boxes at the start (c) puts boxes in the middle (d) packs boxes at the end
  8. 8.What does justify-content: center do? (a) packs boxes at the start (b) puts boxes in the middle (c) packs boxes at the end (d) equal gaps, none at ends
  9. 9.What does justify-content: flex-end 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
  10. 10.💪 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).
  11. 11.💪 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).
  12. 12.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 170px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  13. 13.💪 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).
  14. 14.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 300px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  17. 17.What does justify-content: space-between 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
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  19. 19.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  21. 21.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  22. 22.💪 Which justify-content value packs boxes at the start? (a) space-between (b) center (c) flex-start (d) flex-end
  23. 23.💪 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).
  24. 24.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  25. 25.💪 Which flexbox property picks row or column? (a) gap (b) flex-direction (c) align-items (d) display: flex
  26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px 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 much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 110px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  30. 30.💪 Which flexbox property lines boxes up across? (a) justify-content (b) flex-direction (c) align-items (d) gap
  31. 31.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) space-between (d) center
  32. 32.💪 Which flexbox property sets space between boxes? (a) gap (b) justify-content (c) align-items (d) display: flex
  33. 33.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  34. 34.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 320px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  35. 35.💪 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).
  36. 36.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 410px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  37. 37.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) gap (c) justify-content (d) display: flex
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 430px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 170px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  40. 40.💪 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 80px wide (no margins).

Answer key

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

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