CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 50 · 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 .menu style? (a) <h1 class="menu"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="note">
2. 2.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
3. 3.True or false: img is an element selector. (a) False (b) True
4. 4.🎯 Which CSS selector matches this element?
   <p class="box" id="hero">Hello</p> (a) #top (b) .star (c) p (d) h1
5. 5.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
6. 6.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
7. 7.True or false: #end is an id selector. (a) False (b) True
8. 8.🎯 Which element does the selector #intro style? (a) <h2 class="note"> (b) <h1 id="main"> (c) <h1 id="intro"> (d) <h1 class="intro">
9. 9.🎯 Which CSS selector matches this element?
   <span class="star" id="intro">Hello</span> (a) span (b) .menu (c) .intro (d) p
10. 10.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div id="note"> (c) <div class="big"> (d) <div class="note">
11. 11.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <li> (c) <span id="hero"> (d) <h2 class="menu">
12. 12.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
13. 13.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p class="box"> (c) <p class="star"> (d) <p id="box">
14. 14.True or false: #main is an id selector. (a) True (b) False
15. 15.True or false: #hero is an id selector. (a) False (b) True
16. 16.True or false: li is a class selector. (a) False (b) True
17. 17.True or false: .star is a class selector. (a) False (b) True
18. 18.🎯 Which element does the selector span style? (a) <span class="star"> (b) <h2 id="hero"> (c) <h1 class="star"> (d) <p>
19. 19.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) .box (b) div (c) #box (d) #hero
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) #logo (b) #star (c) .logo (d) #end
21. 21.🎯 Which element does the selector span style? (a) <span class="box"> (b) <h1 class="box"> (c) <h2 id="main"> (d) <p>
22. 22.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <p class="star"> (d) <h2 class="star">
23. 23.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
24. 24.🎯 Which element does the selector span style? (a) <span class="menu"> (b) <p> (c) <h2 id="intro"> (d) <h1 class="menu">
25. 25.🎯 Which element does the selector .big style? (a) <div class="big"> (b) <div class="red"> (c) <span class="box"> (d) <div id="big">
26. 26.🎯 Which sign starts an id selector? (a) # (b) . (c) & (d) @
27. 27.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
29. 29.True or false: .menu is a class selector. (a) False (b) True
30. 30.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <li class="star"> (c) <h2 id="red"> (d) <h2 class="red">
31. 31.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
33. 33.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) div (b) li (c) #big (d) .red
34. 34.True or false: #top is an id selector. (a) True (b) False
35. 35.True or false: .star is an id selector. (a) True (b) False
36. 36.🎯 Which element does the selector .big style? (a) <div class="box"> (b) <li class="red"> (c) <li class="big"> (d) <li id="big">
37. 37.True or false: .card is an id selector. (a) True (b) False
38. 38.🎯 Which element does the selector p style? (a) <h1> (b) <p class="note"> (c) <h2 class="note"> (d) <li id="hero">
39. 39.True or false: .big is an id selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) .intro (b) #red (c) h2 (d) #intro

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