CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 114 · 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) <span class="menu"> (b) <h1 class="menu"> (c) <p> (d) <h2 id="intro">
2. 2.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
3. 3.True or false: p is a class selector. (a) True (b) False
4. 4.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
5. 5.🎯 Which element does the selector .red style? (a) <li class="star"> (b) <h2 class="box"> (c) <h2 id="red"> (d) <h2 class="red">
6. 6.🎯 Which CSS selector matches this element?
   <div class="note" id="logo">Hello</div> (a) div (b) .logo (c) .big (d) #end
7. 7.🎯 Which element does the selector .box style? (a) <h1 class="star"> (b) <h2 class="menu"> (c) <h1 id="box"> (d) <h1 class="box">
8. 8.🎯 Which element does the selector .star style? (a) <h2 class="menu"> (b) <h2 class="star"> (c) <li class="note"> (d) <h2 id="star">
9. 9.🎯 Which CSS selector matches this element?
   <h2 class="big" id="main">Hello</h2> (a) #logo (b) .red (c) li (d) h2
10. 10.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 class="intro"> (c) <h2 class="star"> (d) <h1 id="main">
11. 11.🎯 Which CSS selector matches this element?
    <span class="red" id="end">Hello</span> (a) p (b) .end (c) .red (d) #red
12. 12.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 id="note"> (c) <h2 class="big"> (d) <h2 class="note">
13. 13.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) #top (b) .menu (c) #hero (d) div
14. 14.True or false: #top is a class selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) .note (b) p (c) #end (d) .end
16. 16.🎯 Which CSS selector matches this element?
    <span class="star" id="main">Hello</span> (a) #star (b) #logo (c) span (d) .menu
17. 17.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) #logo (b) #big (c) span (d) #end
18. 18.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
19. 19.True or false: body is an element selector. (a) False (b) True
20. 20.True or false: h1 is an element selector. (a) False (b) True
21. 21.🎯 Which element does the selector h1 style? (a) <li class="big"> (b) <div id="logo"> (c) <h2> (d) <h1 class="big">
22. 22.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) #big (b) span (c) .red (d) div
23. 23.🎯 Which element does the selector #logo style? (a) <h1 class="big"> (b) <p class="logo"> (c) <p id="end"> (d) <p id="logo">
24. 24.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) .box (b) #box (c) .star (d) .logo
26. 26.True or false: p is an element selector. (a) False (b) True
27. 27.True or false: .note is an element selector. (a) True (b) False
28. 28.True or false: .note is an id selector. (a) False (b) True
29. 29.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
30. 30.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) #hero (b) #box (c) .hero (d) p
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) .box (b) .intro (c) #intro (d) h2
32. 32.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
33. 33.🎯 Can many elements share the same class? (a) No (b) Yes
34. 34.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
35. 35.True or false: .note is a class selector. (a) False (b) True
36. 36.🎯 Which element does the selector #hero style? (a) <h2 class="star"> (b) <h1 id="top"> (c) <h1 class="hero"> (d) <h1 id="hero">
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) #red (b) h1 (c) .main (d) h2
38. 38.🎯 Which element does the selector .star style? (a) <h1 class="note"> (b) <p id="star"> (c) <p class="menu"> (d) <p class="star">
39. 39.🎯 Which element does the selector li style? (a) <span class="big"> (b) <li class="big"> (c) <p id="end"> (d) <div>
40. 40.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector

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