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CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 648 · 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.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 500px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  2. 2.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
  3. 3.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-end;
    }
    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: 290px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  5. 5.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  6. 6.💪 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).
  7. 7.💪 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).
  8. 8.What does justify-content: center do? (a) packs boxes at the end (b) puts boxes in the middle (c) equal gaps, none at ends (d) packs boxes at the start
  9. 9.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  10. 10.What does justify-content: space-between 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
  11. 11.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 300px;
      justify-content: center;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  13. 13.💪 Which flexbox property picks row or column? (a) align-items (b) justify-content (c) flex-direction (d) gap
  14. 14.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) center (c) space-between (d) flex-end
  15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  16. 16.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) space-between (c) flex-end (d) center
  17. 17.💪 Which flexbox property sets space between boxes? (a) gap (b) display: flex (c) flex-direction (d) align-items
  18. 18.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  19. 19.💪 Which flexbox property lines boxes up across? (a) gap (b) justify-content (c) display: flex (d) align-items
  20. 20.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) flex-start (c) center (d) flex-end
  21. 21.💪 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).
  22. 22.💪 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).
  23. 23.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 100px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  24. 24.💪 Which flexbox property spaces boxes along a row? (a) gap (b) justify-content (c) align-items (d) flex-direction
  25. 25.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 420px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  26. 26.💪 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).
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  28. 28.💪 Which flexbox property turns on flexbox? (a) flex-direction (b) display: flex (c) justify-content (d) align-items
  29. 29.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  30. 30.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  31. 31.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 430px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  32. 32.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    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: 220px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 410px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  35. 35.💪 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).
  36. 36.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) center (c) flex-start (d) flex-end
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 240px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 280px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  39. 39.💪 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).
  40. 40.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 60px wide (no margins).

Answer key

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

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