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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 578 · 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 justify-content value equal gaps, none at ends? (a) space-between (b) flex-start (c) flex-end (d) center
  2. 2.💪 Which justify-content value packs boxes at the end? (a) center (b) space-between (c) flex-end (d) flex-start
  3. 3.💪 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).
  4. 4.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  5. 5.What does justify-content: flex-start do? (a) equal gaps, none at ends (b) puts boxes in the middle (c) packs boxes at the end (d) packs boxes at the start
  6. 6.💪 Which flexbox property turns on flexbox? (a) gap (b) display: flex (c) align-items (d) justify-content
  7. 7.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  8. 8.💪 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).
  9. 9.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) center (c) space-between (d) flex-start
  10. 10.💪 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).
  11. 11.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  12. 12.What does justify-content: space-between 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 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).
  14. 14.What does justify-content: center do? (a) equal gaps, none at ends (b) packs boxes at the start (c) packs boxes at the end (d) puts boxes in the middle
  15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 170px;
      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: 350px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  17. 17.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  18. 18.💪 Which flexbox property picks row or column? (a) justify-content (b) align-items (c) flex-direction (d) display: flex
  19. 19.💪 Which flexbox property sets space between boxes? (a) gap (b) display: flex (c) flex-direction (d) align-items
  20. 20.💪 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).
  21. 21.💪 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).
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 350px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  23. 23.💪 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).
  24. 24.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 440px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  25. 25.💪 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).
  26. 26.💪 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).
  27. 27.💪 Which flexbox property lines boxes up across? (a) display: flex (b) gap (c) flex-direction (d) align-items
  28. 28.💪 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 80px wide (no margins).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 160px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 120px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  31. 31.💪 Which flexbox property spaces boxes along a row? (a) justify-content (b) align-items (c) flex-direction (d) gap
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  33. 33.What does justify-content: flex-end do? (a) packs boxes at the end (b) packs boxes at the start (c) puts boxes in the middle (d) equal gaps, none at ends
  34. 34.💪 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).
  35. 35.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  36. 36.💪 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).
  37. 37.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-start (c) flex-end (d) center
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    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: 210px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).

Answer key

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

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