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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 304 · 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) puts boxes in the middle (c) packs boxes at the end (d) packs boxes at the start
  2. 2.What does justify-content: flex-start 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
  3. 3.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  4. 4.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  5. 5.💪 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).
  6. 6.💪 Which flexbox property picks row or column? (a) align-items (b) justify-content (c) flex-direction (d) display: flex
  7. 7.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
  8. 8.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  9. 9.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  10. 10.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 110px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  11. 11.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 340px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  13. 13.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) justify-content (c) gap (d) display: flex
  14. 14.💪 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).
  15. 15.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) space-between (c) center (d) flex-end
  16. 16.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 210px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  17. 17.💪 Which flexbox property sets space between boxes? (a) justify-content (b) flex-direction (c) gap (d) display: flex
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      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: 100px;
      justify-content: center;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  20. 20.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  21. 21.💪 Which justify-content value packs boxes at the start? (a) flex-end (b) flex-start (c) center (d) space-between
  22. 22.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 400px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  23. 23.💪 Which flexbox property lines boxes up across? (a) display: flex (b) justify-content (c) flex-direction (d) align-items
  24. 24.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 320px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  25. 25.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 140px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  26. 26.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 190px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  27. 27.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 220px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  28. 28.What does justify-content: flex-end do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the end (d) packs boxes at the start
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 170px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  31. 31.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 610px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  32. 32.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 580px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  33. 33.💪 Which justify-content value puts boxes in the middle? (a) flex-start (b) center (c) space-between (d) flex-end
  34. 34.💪 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).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  36. 36.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 330px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  37. 37.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 140px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  38. 38.💪 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).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  40. 40.💪 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).

Answer key

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

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