CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 71 · 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.True or false: #hero is an id selector. (a) True (b) False
2. 2.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <li> (c) <h2 class="box"> (d) <span id="main">
3. 3.True or false: h1 is a class selector. (a) False (b) True
4. 4.🎯 Which CSS selector matches this element?
   <h2 class="note" id="hero">Hello</h2> (a) #note (b) h2 (c) .hero (d) .big
5. 5.🎯 Which sign starts an id selector? (a) # (b) . (c) & (d) @
6. 6.🎯 Which CSS selector matches this element?
   <p class="red" id="top">Hello</p> (a) #red (b) .box (c) h1 (d) p
7. 7.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
8. 8.🎯 Which element does the selector span style? (a) <span class="note"> (b) <p> (c) <h2 id="intro"> (d) <h1 class="note">
9. 9.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
11. 11.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <h1 class="star"> (c) <h2> (d) <div id="hero">
12. 12.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) .note (b) p (c) #note (d) .main
14. 14.True or false: .note is a class selector. (a) True (b) False
15. 15.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) .logo (b) #menu (c) .note (d) div
16. 16.True or false: .note is an element selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <div class="red" id="main">Hello</div> (a) .box (b) .main (c) #logo (d) #main
18. 18.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
19. 19.True or false: .menu is an id selector. (a) False (b) True
20. 20.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) #hero (b) #end (c) #note (d) .end
21. 21.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="main"> (c) <li class="note"> (d) <h1 class="note">
22. 22.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) .end (b) #big (c) .big (d) h1
23. 23.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) .hero (b) .menu (c) #menu (d) #top
24. 24.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <h2> (c) <li class="menu"> (d) <h1 class="menu">
25. 25.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) #top (b) #hero (c) .red (d) #big
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #menu (b) h1 (c) .note (d) .top
28. 28.True or false: li is an element selector. (a) True (b) False
29. 29.True or false: .menu is an element selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) div (b) .intro (c) .menu (d) .star
31. 31.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <p id="logo"> (d) <h1 class="box">
32. 32.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
33. 33.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) #star (b) .menu (c) .star (d) #top
34. 34.True or false: .star is a class selector. (a) False (b) True
35. 35.🎯 Which element does the selector li style? (a) <span class="star"> (b) <div> (c) <p id="logo"> (d) <li class="star">
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) #main (b) li (c) #intro (d) .intro
37. 37.🎯 Which element does the selector h2 style? (a) <div class="red"> (b) <h2 class="red"> (c) <li> (d) <span id="main">
38. 38.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <div class="star"> (c) <li class="red"> (d) <li class="box">
39. 39.🎯 Which element does the selector li style? (a) <p id="logo"> (b) <div> (c) <li class="box"> (d) <span class="box">
40. 40.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector

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