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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 178 · 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.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) flex-direction (d) display: flex
  2. 2.💪 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).
  3. 3.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  4. 4.💪 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).
  5. 5.💪 Which flexbox property lines boxes up across? (a) gap (b) align-items (c) flex-direction (d) justify-content
  6. 6.💪 Which flexbox property turns on flexbox? (a) align-items (b) display: flex (c) justify-content (d) gap
  7. 7.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  8. 8.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) flex-start (c) center (d) flex-end
  9. 9.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  10. 10.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) space-between (d) center
  11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  12. 12.What does justify-content: flex-start 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
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  14. 14.💪 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 40px wide (no margins).
  15. 15.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) gap (c) flex-direction (d) justify-content
  16. 16.What does justify-content: center 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
  17. 17.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  19. 19.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) flex-end (c) center (d) space-between
  20. 20.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
  21. 21.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 430px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  22. 22.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 350px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  23. 23.What does justify-content: flex-end 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
  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.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  26. 26.💪 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).
  27. 27.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 470px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  28. 28.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 150px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  29. 29.💪 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).
  30. 30.💪 Which justify-content value packs boxes at the start? (a) flex-end (b) space-between (c) center (d) flex-start
  31. 31.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  33. 33.💪 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).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  35. 35.💪 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).
  36. 36.💪 Which flexbox property sets space between boxes? (a) flex-direction (b) align-items (c) display: flex (d) gap
  37. 37.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 320px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 380px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  40. 40.💪 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).

Answer key

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

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