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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 778 · 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 packs boxes at the end? (a) flex-end (b) flex-start (c) center (d) space-between
  2. 2.💪 Which flexbox property turns on flexbox? (a) display: flex (b) flex-direction (c) justify-content (d) gap
  3. 3.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 230px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  4. 4.What does justify-content: flex-end do? (a) packs boxes at the end (b) puts boxes in the middle (c) packs boxes at the start (d) equal gaps, none at ends
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  6. 6.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  7. 7.What does justify-content: flex-start do? (a) packs boxes at the end (b) packs boxes at the start (c) equal gaps, none at ends (d) puts boxes in the middle
  8. 8.💪 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).
  9. 9.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  10. 10.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) flex-end (c) flex-start (d) center
  11. 11.💪 Which justify-content value puts boxes in the middle? (a) center (b) flex-end (c) space-between (d) flex-start
  12. 12.What does justify-content: space-between do? (a) equal gaps, none at ends (b) packs boxes at the end (c) packs boxes at the start (d) puts boxes in the middle
  13. 13.What does justify-content: center do? (a) packs boxes at the end (b) equal gaps, none at ends (c) puts boxes in the middle (d) packs boxes at the start
  14. 14.💪 Which flexbox property spaces boxes along a row? (a) justify-content (b) gap (c) display: flex (d) flex-direction
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 410px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  16. 16.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 320px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  17. 17.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 340px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  18. 18.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 210px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  19. 19.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) flex-end (c) center (d) space-between
  20. 20.💪 Which flexbox property picks row or column? (a) gap (b) display: flex (c) flex-direction (d) align-items
  21. 21.💪 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 60px wide (no margins).
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 370px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  23. 23.💪 Which flexbox property sets space between boxes? (a) justify-content (b) display: flex (c) gap (d) flex-direction
  24. 24.💪 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 80px wide (no margins).
  25. 25.💪 Which flexbox property lines boxes up across? (a) display: flex (b) justify-content (c) align-items (d) gap
  26. 26.💪 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).
  27. 27.💪 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).
  28. 28.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px 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 40px wide (no margins).
  30. 30.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 240px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  32. 32.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 320px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  34. 34.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 390px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  35. 35.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  36. 36.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  37. 37.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 250px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  39. 39.💪 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).
  40. 40.💪 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).

Answer key

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

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