CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 479 · 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?
   <span class="note" id="top">Hello</span> (a) .top (b) p (c) span (d) #note
2. 2.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
3. 3.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
4. 4.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <h1 class="note"> (d) <div id="intro">
5. 5.True or false: body is an element selector. (a) True (b) False
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
9. 9.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h1> (c) <li id="logo"> (d) <h2 class="big">
10. 10.🎯 Which element does the selector .note style? (a) <h2 class="note"> (b) <li class="red"> (c) <h2 id="note"> (d) <h2 class="big">
11. 11.🎯 Which CSS selector matches this element?
    <div class="star" id="hero">Hello</div> (a) .menu (b) span (c) .star (d) .hero
12. 12.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
15. 15.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
16. 16.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) h1 (b) #box (c) .box (d) .star
17. 17.True or false: #top is an id selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #note (b) h1 (c) #top (d) .top
19. 19.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
20. 20.True or false: .note is an id selector. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) #hero (b) .star (c) #top (d) .hero
22. 22.True or false: h1 is a class selector. (a) True (b) False
23. 23.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <span> (c) <p class="menu"> (d) <div class="menu">
27. 27.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="main"> (c) <span class="note"> (d) <h1 class="note">
28. 28.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) .big (b) .end (c) p (d) #hero
29. 29.True or false: #main is an id selector. (a) True (b) False
30. 30.🎯 Which element does the selector li style? (a) <span class="box"> (b) <div> (c) <li class="box"> (d) <p id="top">
31. 31.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) #big (b) span (c) p (d) .red
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) .big (b) h2 (c) .red (d) #big
34. 34.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .top (b) #top (c) #menu (d) #intro
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) #note (b) .end (c) #end (d) #hero
36. 36.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) .note (b) #intro (c) span (d) .intro
37. 37.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
38. 38.True or false: p is an id selector. (a) False (b) True
39. 39.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <span id="logo"> (c) <p class="note"> (d) <span id="end">
40. 40.🎯 Which element does the selector #intro style? (a) <li id="main"> (b) <div class="note"> (c) <li class="intro"> (d) <li id="intro">

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