CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 258 · 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) <h2 class="menu"> (b) <span id="main"> (c) <li> (d) <div class="menu">
2. 2.True or false: #hero is a class selector. (a) True (b) False
3. 3.True or false: #top is an id selector. (a) True (b) False
4. 4.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
5. 5.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
6. 6.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
7. 7.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <p class="note"> (c) <span> (d) <div class="note">
8. 8.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
9. 9.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
10. 10.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="big"> (c) <p class="box"> (d) <span class="red">
11. 11.🎯 Which element does the selector #top style? (a) <span class="note"> (b) <div class="top"> (c) <div id="top"> (d) <div id="intro">
12. 12.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) .end (b) #hero (c) #menu (d) #end
14. 14.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
15. 15.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) .end (b) span (c) #hero (d) #star
16. 16.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <h2 id="main"> (c) <h2 id="intro"> (d) <li class="box">
17. 17.🎯 Which element does the selector #hero style? (a) <li id="top"> (b) <li class="hero"> (c) <div class="red"> (d) <li id="hero">
18. 18.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <h1 class="red"> (c) <p class="top"> (d) <p id="top">
19. 19.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
20. 20.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
21. 21.True or false: .star is an id selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="box" id="main">Hello</h2> (a) #box (b) .main (c) h2 (d) #logo
23. 23.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <h2 class="star"> (c) <span id="intro"> (d) <li>
24. 24.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
26. 26.True or false: li is a class selector. (a) False (b) True
27. 27.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) #top (b) span (c) .top (d) #red
28. 28.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) li (b) #intro (c) div (d) .big
29. 29.🎯 Which element does the selector #main style? (a) <p class="big"> (b) <span id="logo"> (c) <span class="main"> (d) <span id="main">
30. 30.True or false: #end is an id selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) .box (b) .red (c) #red (d) p
32. 32.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) #note (b) div (c) .intro (d) .note
33. 33.🎯 Can many elements share the same class? (a) Yes (b) No
34. 34.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) .big (b) #logo (c) li (d) #end
36. 36.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
37. 37.🎯 Which element does the selector #end style? (a) <h1 id="end"> (b) <h1 class="end"> (c) <h1 id="hero"> (d) <h2 class="red">
38. 38.🎯 Which element does the selector .big style? (a) <h2 id="big"> (b) <h2 class="red"> (c) <li class="box"> (d) <h2 class="big">
39. 39.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) #menu (b) .hero (c) p (d) h1
40. 40.True or false: .big is an element selector. (a) False (b) True

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