CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 617 · 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 CSS selector matches this element?
   <h2 class="note" id="end">Hello</h2> (a) #note (b) #hero (c) #end (d) li
2. 2.🎯 Which CSS selector matches this element?
   <li class="menu" id="main">Hello</li> (a) #logo (b) #menu (c) .note (d) #main
3. 3.🎯 Which CSS selector matches this element?
   <div class="star" id="logo">Hello</div> (a) #star (b) div (c) .logo (d) .menu
4. 4.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
5. 5.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
6. 6.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p id="note"> (c) <p class="note"> (d) <p class="big">
7. 7.🎯 Which element does the selector .star style? (a) <h1 class="star"> (b) <h1 class="menu"> (c) <h1 id="star"> (d) <h2 class="note">
8. 8.🎯 Which CSS selector matches this element?
   <li class="note" id="hero">Hello</li> (a) .big (b) li (c) .hero (d) div
9. 9.🎯 Which CSS selector matches this element?
   <span class="big" id="main">Hello</span> (a) .red (b) .main (c) #big (d) .big
10. 10.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) div (b) span (c) .star (d) .end
11. 11.🎯 Which sign starts a class selector? (a) & (b) @ (c) # (d) .
12. 12.True or false: .card is an element selector. (a) False (b) True
13. 13.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) .star (b) .menu (c) #end (d) .logo
16. 16.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
17. 17.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
18. 18.True or false: #hero is an element selector. (a) False (b) True
19. 19.🎯 Can many elements share the same class? (a) Yes (b) No
20. 20.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <li> (c) <span id="logo"> (d) <h2 class="box">
21. 21.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
22. 22.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) span (b) .red (c) #logo (d) p
23. 23.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) span (b) .end (c) div (d) #big
24. 24.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .red (b) .intro (c) #red (d) h1
25. 25.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <span class="big"> (c) <div id="main"> (d) <div class="main">
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) .box (b) #main (c) li (d) #logo
27. 27.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
28. 28.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) .logo (b) .note (c) #logo (d) p
29. 29.True or false: img is an id selector. (a) False (b) True
30. 30.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="red"> (d) <div class="big">
31. 31.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .top (b) #note (c) h1 (d) p
32. 32.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 id="menu"> (c) <h1 class="menu"> (d) <h1 class="note">
33. 33.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
34. 34.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li> (a) .box (b) li (c) .top (d) #intro
35. 35.True or false: #top is a class selector. (a) False (b) True
36. 36.🎯 Which element does the selector li style? (a) <div> (b) <li class="box"> (c) <span class="box"> (d) <p id="main">
37. 37.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
38. 38.True or false: #end is an id selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .box (b) #red (c) span (d) #intro
40. 40.True or false: li is a class selector. (a) True (b) False

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