CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 513 · 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 h2 style? (a) <div class="star"> (b) <span id="hero"> (c) <li> (d) <h2 class="star">
2. 2.🎯 Can many elements share the same class? (a) No (b) Yes
3. 3.True or false: .big is an id selector. (a) False (b) True
4. 4.🎯 Which element does the selector h2 style? (a) <span id="intro"> (b) <li> (c) <h2 class="big"> (d) <div class="big">
5. 5.🎯 Which element does the selector #main style? (a) <p class="main"> (b) <p id="logo"> (c) <h1 class="box"> (d) <p id="main">
6. 6.True or false: #top is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="note" id="logo">Hello</h1> (a) .logo (b) h2 (c) h1 (d) #note
8. 8.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
9. 9.🎯 Which CSS selector matches this element?
   <div class="menu" id="hero">Hello</div> (a) .hero (b) .menu (c) #menu (d) #top
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) #hero (b) li (c) .box (d) .red
11. 11.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
13. 13.True or false: #end is a class selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <div class="red" id="end">Hello</div> (a) #hero (b) #end (c) span (d) .box
15. 15.True or false: li is an element selector. (a) True (b) False
16. 16.🎯 Which element does the selector .star style? (a) <div class="note"> (b) <li class="menu"> (c) <li class="star"> (d) <li id="star">
17. 17.True or false: .card is an id selector. (a) False (b) True
18. 18.True or false: body is a class selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) p (b) #menu (c) .hero (d) #top
20. 20.True or false: #end is an element selector. (a) True (b) False
21. 21.True or false: #top is an id selector. (a) False (b) True
22. 22.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span class="red"> (c) <span id="red"> (d) <p class="star">
23. 23.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) #logo (b) .main (c) .menu (d) li
24. 24.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #
25. 25.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) p (b) .top (c) .big (d) #big
26. 26.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) li (b) #intro (c) h2 (d) .red
28. 28.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
30. 30.🎯 Which CSS selector matches this element?
    <span class="menu" id="hero">Hello</span> (a) .menu (b) #top (c) .note (d) #menu
31. 31.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <h2> (c) <h1 class="box"> (d) <li class="box">
32. 32.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <p> (c) <span class="menu"> (d) <h1 class="menu">
33. 33.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="menu"> (c) <span id="logo"> (d) <h2 class="menu">
34. 34.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #end (b) h1 (c) .logo (d) .note
35. 35.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .top (b) #menu (c) p (d) #top
36. 36.True or false: #main is an element selector. (a) False (b) True
37. 37.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <div class="menu"> (c) <p class="menu"> (d) <span>
38. 38.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
39. 39.True or false: h1 is an element selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) #note (b) .end (c) .big (d) #end

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