CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 689 · 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 #top style? (a) <h2 id="top"> (b) <li class="star"> (c) <h2 id="intro"> (d) <h2 class="top">
2. 2.True or false: #logo is a class selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <div class="big" id="top">Hello</div> (a) .red (b) .top (c) #big (d) .big
4. 4.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
5. 5.🎯 Which element does the selector p style? (a) <h2 class="box"> (b) <p class="box"> (c) <li id="intro"> (d) <h1>
6. 6.True or false: .big is an element selector. (a) False (b) True
7. 7.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 2 (d) 5
8. 8.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.🎯 Which CSS selector matches this element?
    <li class="red" id="main">Hello</li> (a) #logo (b) li (c) .main (d) #red
12. 12.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="menu">
13. 13.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
14. 14.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
15. 15.True or false: li is an element selector. (a) False (b) True
16. 16.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
17. 17.🎯 Which element does the selector .note style? (a) <li class="note"> (b) <li id="note"> (c) <li class="big"> (d) <div class="red">
18. 18.True or false: .card is an element selector. (a) True (b) False
19. 19.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
20. 20.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="menu"> (d) <div class="logo">
21. 21.🎯 Which CSS selector matches this element?
    <p class="menu" id="end">Hello</p> (a) .menu (b) .note (c) .end (d) #menu
22. 22.🎯 Which element does the selector .big style? (a) <span class="red"> (b) <p class="box"> (c) <span id="big"> (d) <span class="big">
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2> (a) #end (b) #star (c) .end (d) .menu
24. 24.True or false: .star is a class selector. (a) False (b) True
25. 25.🎯 Which element does the selector #hero style? (a) <h2 id="top"> (b) <li class="star"> (c) <h2 id="hero"> (d) <h2 class="hero">
26. 26.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #big (b) h1 (c) p (d) .hero
27. 27.🎯 Which element does the selector p style? (a) <h2 class="red"> (b) <p class="red"> (c) <h1> (d) <li id="top">
28. 28.True or false: #end is an element selector. (a) False (b) True
29. 29.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) .box (b) .intro (c) .red (d) #red
30. 30.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) .red (b) #intro (c) #big (d) #main
31. 31.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
32. 32.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
33. 33.True or false: img is an element selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) #main (b) li (c) .main (d) .big
35. 35.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="menu"> (c) <div class="star"> (d) <div id="star">
36. 36.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) .box (b) .star (c) .main (d) #logo
38. 38.True or false: .menu is an element selector. (a) True (b) False
39. 39.True or false: .card is a class selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #star (b) h1 (c) .end (d) #end

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