← Flexbox basics lesson New set →

CSS Worksheet: Flexbox Basics

HTML and CSS lesson 18: Flexbox basics · Set 156 · 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 flexbox property turns on flexbox? (a) justify-content (b) display: flex (c) flex-direction (d) align-items
  2. 2.💪 Which flexbox property spaces boxes along a row? (a) flex-direction (b) align-items (c) justify-content (d) display: flex
  3. 3.💪 Which justify-content value packs boxes at the start? (a) flex-start (b) center (c) flex-end (d) space-between
  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 end (d) packs boxes at the start
  5. 5.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 240px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  6. 6.What does justify-content: flex-start do? (a) puts boxes in the middle (b) packs boxes at the start (c) equal gaps, none at ends (d) packs boxes at the end
  7. 7.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 300px;
      justify-content: space-between;
    }
    Inside are 3 boxes, each 80px wide (no margins).
  8. 8.💪 Which justify-content value puts boxes in the middle? (a) flex-start (b) space-between (c) flex-end (d) center
  9. 9.💪 Which flexbox property sets space between boxes? (a) gap (b) align-items (c) justify-content (d) flex-direction
  10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  11. 11.💪 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).
  12. 12.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 50px wide (no margins).
  13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 140px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
  14. 14.💪 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).
  15. 15.💪 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).
  16. 16.What does justify-content: space-between 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
  17. 17.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 4 boxes, each 80px wide (no margins).
  18. 18.What does justify-content: center 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
  19. 19.💪 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).
  20. 20.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 290px;
      justify-content: space-between;
    }
    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: 310px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 60px wide (no margins).
  22. 22.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
  23. 23.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 60px wide (no margins).
  24. 24.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) display: flex (c) align-items (d) justify-content
  25. 25.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 470px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 100px wide (no margins).
  26. 26.💪 Which justify-content value packs boxes at the end? (a) space-between (b) flex-end (c) flex-start (d) center
  27. 27.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 50px wide (no margins).
  28. 28.💪 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).
  29. 29.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 210px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 80px wide (no margins).
  30. 30.💪 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).
  31. 31.💪 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).
  32. 32.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) flex-end (c) center (d) space-between
  33. 33.💪 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).
  34. 34.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 250px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
  35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 50px wide (no margins).
  36. 36.💪 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).
  37. 37.💪 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).
  38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 100px wide (no margins).
  39. 39.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      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: 400px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 80px wide (no margins).

Answer key

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

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