← Flexbox basics lesson New set →

CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 188 · 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: 400px;
      justify-content: center;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  2. 2.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 360px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  3. 3.💪 Which justify-content value equal gaps, none at ends? (a) flex-end (b) center (c) space-between (d) flex-start
  4. 4.What does justify-content: flex-end do? (a) equal gaps, none at ends (b) puts boxes in the middle (c) packs boxes at the start (d) packs boxes at the end
  5. 5.What does justify-content: flex-start 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
  6. 6.💪 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).
  7. 7.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-start (c) flex-end (d) space-between
  8. 8.💪 Which flexbox property spaces boxes along a row? (a) justify-content (b) align-items (c) display: flex (d) gap
  9. 9.💪 Which justify-content value puts boxes in the middle? (a) center (b) flex-start (c) flex-end (d) space-between
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  11. 11.💪 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).
  12. 12.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-end (c) flex-start (d) center
  13. 13.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 260px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  14. 14.💪 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).
  15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  16. 16.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
  17. 17.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  18. 18.💪 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).
  19. 19.💪 Which flexbox property lines boxes up across? (a) justify-content (b) align-items (c) flex-direction (d) gap
  20. 20.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 380px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  21. 21.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 440px;
      justify-content: center;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  22. 22.💪 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 60px wide (no margins).
  23. 23.What does justify-content: center 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
  24. 24.💪 Which flexbox property turns on flexbox? (a) justify-content (b) gap (c) display: flex (d) flex-direction
  25. 25.💪 Which flexbox property sets space between boxes? (a) display: flex (b) align-items (c) justify-content (d) gap
  26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  27. 27.💪 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).
  28. 28.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 190px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  29. 29.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 420px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  30. 30.💪 Which flexbox property picks row or column? (a) justify-content (b) display: flex (c) flex-direction (d) align-items
  31. 31.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 480px;
      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: 130px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  33. 33.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 520px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  34. 34.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 450px;
      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: 160px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  36. 36.💪 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 100px wide (no margins).
  37. 37.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 290px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  38. 38.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 250px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 100px wide (no margins).
  39. 39.💪 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).
  40. 40.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 160px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).

Answer key

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

Free html and css lessons, practice and worksheets at talentjr.in/html-css-for-kids