CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 979 · 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 #main style? (a) <p id="logo"> (b) <p class="main"> (c) <h1 class="box"> (d) <p id="main">
2. 2.True or false: .big is a class selector. (a) False (b) True
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="big" id="end">Hello</h1> (a) #hero (b) .red (c) h2 (d) #end
4. 4.🎯 Which sign starts an id selector? (a) @ (b) # (c) . (d) &
5. 5.🎯 Which element does the selector #intro style? (a) <h1 class="note"> (b) <p class="intro"> (c) <p id="intro"> (d) <p id="main">
6. 6.True or false: #top is an element selector. (a) False (b) True
7. 7.True or false: h1 is an element selector. (a) True (b) False
8. 8.🎯 Which element does the selector .menu style? (a) <li class="menu"> (b) <li id="menu"> (c) <div class="big"> (d) <li class="note">
9. 9.True or false: .note is a class selector. (a) False (b) True
10. 10.🎯 Which element does the selector h1 style? (a) <li class="menu"> (b) <div id="end"> (c) <h2> (d) <h1 class="menu">
11. 11.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) div (b) #top (c) .star (d) #star
12. 12.🎯 Which CSS selector matches this element?
    <div class="box" id="hero">Hello</div> (a) #box (b) #top (c) .box (d) span
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .red (b) #intro (c) #big (d) .intro
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) #logo (b) h2 (c) .big (d) .logo
15. 15.🎯 Which CSS selector matches this element?
    <p class="box" id="hero">Hello</p> (a) .box (b) .star (c) #box (d) .hero
16. 16.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) .red (b) .intro (c) #red (d) #main
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .top (b) li (c) #top (d) #intro
18. 18.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
19. 19.🎯 Which element does the selector #intro style? (a) <p class="box"> (b) <span id="main"> (c) <span class="intro"> (d) <span id="intro">
20. 20.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) .top (b) #top (c) .big (d) #intro
21. 21.True or false: #logo is an id selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) .note (b) div (c) .hero (d) #hero
23. 23.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
24. 24.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #intro (b) span (c) p (d) .box
25. 25.True or false: li is an element selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li> (a) #red (b) div (c) li (d) .top
27. 27.🎯 Which element does the selector p style? (a) <p class="star"> (b) <li id="hero"> (c) <h2 class="star"> (d) <h1>
28. 28.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="main"> (c) <p class="menu"> (d) <div class="menu">
30. 30.🎯 Which sign starts a class selector? (a) . (b) # (c) & (d) @
31. 31.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) #hero (b) .red (c) #end (d) .end
32. 32.🎯 Can many elements share the same class? (a) Yes (b) No
33. 33.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) .red (b) h2 (c) .logo (d) .big
36. 36.🎯 Which element does the selector #logo style? (a) <h1 class="logo"> (b) <h1 id="logo"> (c) <h1 id="end"> (d) <h2 class="note">
37. 37.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h1 id="intro"> (c) <h2 class="menu"> (d) <h1 class="intro">
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h1 (b) h2 (c) #main (d) .intro
39. 39.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <span class="big"> (c) <h2 id="end"> (d) <p>
40. 40.True or false: li is a class selector. (a) True (b) False

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