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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 194 · 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.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
  2. 2.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 440px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  3. 3.💪 Which justify-content value puts boxes in the middle? (a) center (b) flex-start (c) flex-end (d) space-between
  4. 4.What does justify-content: center do? (a) puts boxes in the middle (b) packs boxes at the end (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: 170px;
      justify-content: center;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  6. 6.💪 Which justify-content value packs boxes at the end? (a) flex-end (b) center (c) flex-start (d) space-between
  7. 7.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-start (c) flex-end (d) space-between
  8. 8.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 310px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  9. 9.💪 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).
  10. 10.💪 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 40px wide (no margins).
  11. 11.💪 Which flexbox property lines boxes up across? (a) justify-content (b) align-items (c) gap (d) display: flex
  12. 12.What does justify-content: flex-end do? (a) packs boxes at the start (b) puts boxes in the middle (c) equal gaps, none at ends (d) packs boxes at the end
  13. 13.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 350px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  14. 14.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-start (c) center (d) flex-end
  15. 15.💪 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).
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  17. 17.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  19. 19.💪 Which flexbox property picks row or column? (a) gap (b) align-items (c) justify-content (d) flex-direction
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  21. 21.💪 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).
  22. 22.💪 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).
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  24. 24.💪 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).
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 130px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  27. 27.💪 Which flexbox property spaces boxes along a row? (a) gap (b) display: flex (c) flex-direction (d) justify-content
  28. 28.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  29. 29.💪 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).
  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.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  32. 32.💪 Which flexbox property sets space between boxes? (a) display: flex (b) gap (c) flex-direction (d) align-items
  33. 33.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 420px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 380px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  38. 38.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  39. 39.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
  40. 40.💪 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 60px wide (no margins).

Answer key

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

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