CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 537 · 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?
   <span class="star" id="logo">Hello</span> (a) #end (b) p (c) #logo (d) #star
2. 2.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which CSS selector matches this element?
   <li class="red" id="intro">Hello</li> (a) .box (b) div (c) #red (d) .red
4. 4.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
5. 5.🎯 Which CSS selector matches this element?
   <p class="note" id="end">Hello</p> (a) #end (b) #note (c) .big (d) .end
6. 6.🎯 Which CSS selector matches this element?
   <li class="big" id="top">Hello</li> (a) .red (b) .big (c) div (d) #intro
7. 7.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
8. 8.🎯 Can many elements share the same class? (a) Yes (b) No
9. 9.True or false: p is a class selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) div (b) #box (c) span (d) #main
11. 11.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
12. 12.True or false: .big is an id selector. (a) False (b) True
13. 13.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which element does the selector li style? (a) <li class="big"> (b) <div> (c) <span class="big"> (d) <p id="logo">
15. 15.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
16. 16.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) .star (b) .logo (c) #star (d) .menu
17. 17.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) #hero (b) li (c) .note (d) .end
18. 18.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
19. 19.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) div (b) .hero (c) span (d) #top
20. 20.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <p class="big"> (c) <h1> (d) <li id="top">
21. 21.True or false: .big is a class selector. (a) True (b) False
22. 22.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="note"> (c) <span id="top"> (d) <h2 class="note">
23. 23.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="note"> (c) <span class="menu"> (d) <p class="big">
24. 24.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) #note (b) .big (c) .note (d) div
25. 25.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
26. 26.True or false: #main is an id selector. (a) False (b) True
27. 27.True or false: #logo is a class selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <div class="box" id="hero">Hello</div> (a) span (b) #box (c) .star (d) .box
29. 29.True or false: .menu is a class selector. (a) True (b) False
30. 30.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) .end (b) #hero (c) div (d) li
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) h1 (b) #big (c) .top (d) #intro
32. 32.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <li class="note"> (c) <h2 class="menu"> (d) <h2 class="star">
34. 34.🎯 Which CSS selector matches this element?
    <span class="box" id="logo">Hello</span> (a) .star (b) #box (c) #logo (d) .logo
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) #logo (b) div (c) .main (d) #note
36. 36.🎯 Which element does the selector .note style? (a) <h1 id="note"> (b) <h1 class="note"> (c) <h1 class="big"> (d) <h2 class="red">
37. 37.True or false: p is an element selector. (a) False (b) True
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) #end (b) li (c) h2 (d) .logo
39. 39.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="box"> (c) <div id="hero"> (d) <h1 class="box">
40. 40.🎯 Which element does the selector #intro style? (a) <div id="main"> (b) <div id="intro"> (c) <div class="intro"> (d) <span class="box">

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