CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 397 · 40 questions

Code tip (Dot for class, hash for id): p matches every <p>; .note matches class="note"; #top matches id="top". A dot means class, a hash means id — mixing them up matches nothing. Many elements can share a class; an id belongs to only one element.

1. 1.🎯 Which element does the selector span style? (a) <h1 class="red"> (b) <p> (c) <h2 id="main"> (d) <span class="red">
2. 2.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
3. 3.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
4. 4.🎯 Which CSS selector matches this element?
   <p class="note" id="main">Hello</p> (a) .main (b) .note (c) #logo (d) #note
5. 5.🎯 Which CSS selector matches this element?
   <li class="box" id="end">Hello</li> (a) div (b) #box (c) #end (d) .end
6. 6.🎯 Which CSS selector matches this element?
   <li class="note" id="hero">Hello</li> (a) div (b) #note (c) #hero (d) #top
7. 7.🎯 Which CSS selector matches this element?
   <div class="star" id="hero">Hello</div> (a) span (b) .menu (c) div (d) #star
8. 8.🎯 Which element does the selector #main style? (a) <h2 class="main"> (b) <li class="menu"> (c) <h2 id="logo"> (d) <h2 id="main">
9. 9.🎯 Which CSS selector matches this element?
   <li class="big" id="intro">Hello</li> (a) #big (b) .red (c) #intro (d) div
10. 10.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
13. 13.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 Which element does the selector .big style? (a) <h2 class="red"> (b) <h2 class="big"> (c) <li class="box"> (d) <h2 id="big">
16. 16.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="menu"> (c) <div id="star"> (d) <div class="star">
17. 17.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
18. 18.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <div id="end"> (c) <h2> (d) <h1 class="box">
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="big" id="main">Hello</h2> (a) h2 (b) li (c) #big (d) .main
20. 20.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
21. 21.True or false: .menu is an id selector. (a) False (b) True
22. 22.🎯 Which element does the selector .note style? (a) <h2 class="note"> (b) <h2 id="note"> (c) <li class="red"> (d) <h2 class="big">
23. 23.🎯 Which element does the selector #intro style? (a) <h2 id="main"> (b) <li class="red"> (c) <h2 class="intro"> (d) <h2 id="intro">
24. 24.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #big (b) .red (c) .main (d) .big
25. 25.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) #menu (b) .menu (c) span (d) .note
26. 26.True or false: img is a class selector. (a) False (b) True
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) #hero (b) .hero (c) .big (d) #top
28. 28.True or false: p is a class selector. (a) False (b) True
29. 29.🎯 Which element does the selector .red style? (a) <h1 class="red"> (b) <h2 class="star"> (c) <h1 id="red"> (d) <h1 class="box">
30. 30.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <p class="box"> (d) <span class="big">
31. 31.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="star"> (c) <span id="box"> (d) <span class="box">
32. 32.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
34. 34.True or false: body is an element selector. (a) False (b) True
35. 35.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
36. 36.🎯 Which element does the selector #main style? (a) <p id="logo"> (b) <p class="main"> (c) <p id="main"> (d) <h1 class="star">
37. 37.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
38. 38.True or false: #logo is an id selector. (a) True (b) False
39. 39.True or false: #logo is a class selector. (a) True (b) False
40. 40.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector

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