CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 562 · 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 CSS selector matches this element?
   <li class="note" id="main">Hello</li> (a) li (b) .main (c) .big (d) #note
2. 2.🎯 Which element does the selector #hero style? (a) <h2 id="hero"> (b) <h2 id="top"> (c) <h2 class="hero"> (d) <li class="menu">
3. 3.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
4. 4.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
5. 5.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
6. 6.🎯 Which element does the selector div style? (a) <h1 id="intro"> (b) <div class="big"> (c) <p class="big"> (d) <span>
7. 7.🎯 Which CSS selector matches this element?
   <div class="red" id="intro">Hello</div> (a) #intro (b) .box (c) #red (d) span
8. 8.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
9. 9.True or false: img is an element selector. (a) True (b) False
10. 10.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 5 (d) 1
11. 11.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <p class="note"> (c) <span class="menu"> (d) <span id="star">
12. 12.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) #menu (b) #top (c) .top (d) .note
13. 13.True or false: #main is a class selector. (a) False (b) True
14. 14.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) #hero (b) .end (c) #menu (d) h1
16. 16.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) .big (b) .red (c) h1 (d) .main
17. 17.True or false: #logo is an id selector. (a) False (b) True
18. 18.True or false: .star is a class selector. (a) False (b) True
19. 19.🎯 Which sign starts a class selector? (a) @ (b) & (c) . (d) #
20. 20.True or false: li is an element selector. (a) True (b) False
21. 21.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <h2 class="menu"> (c) <li class="big"> (d) <h2 id="menu">
22. 22.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) .intro (b) #red (c) li (d) .box
23. 23.True or false: h1 is an id selector. (a) False (b) True
24. 24.🎯 Which element does the selector #main style? (a) <div id="main"> (b) <span class="star"> (c) <div class="main"> (d) <div id="logo">
25. 25.True or false: #hero is an id selector. (a) False (b) True
26. 26.🎯 Can many elements share the same class? (a) Yes (b) No
27. 27.True or false: p is a class selector. (a) False (b) True
28. 28.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
29. 29.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
30. 30.True or false: .big is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector .note style? (a) <li class="big"> (b) <li id="note"> (c) <li class="note"> (d) <div class="red">
32. 32.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) .red (c) div (d) #big
33. 33.🎯 Which element does the selector #top style? (a) <p id="top"> (b) <p class="top"> (c) <p id="intro"> (d) <h1 class="big">
34. 34.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #hero (b) .hero (c) h1 (d) .red
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) #star (b) #intro (c) .menu (d) .intro
36. 36.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) #hero (b) .note (c) .big (d) span
37. 37.True or false: .note is an id selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) h2 (b) #big (c) .top (d) h1
39. 39.🎯 Which CSS selector matches this element?
    <h1 class="star" id="hero">Hello</h1> (a) #hero (b) #top (c) .hero (d) .menu
40. 40.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) .main (b) .note (c) .menu (d) #menu

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