CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 203 · 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?
   <p class="menu" id="main">Hello</p> (a) #main (b) #menu (c) #logo (d) .main
2. 2.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
3. 3.🎯 Which CSS selector matches this element?
   <div class="red" id="top">Hello</div> (a) span (b) .top (c) div (d) .box
4. 4.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
5. 5.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
7. 7.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <div class="box" id="intro">Hello</div> (a) #main (b) div (c) #box (d) span
9. 9.🎯 Which CSS selector matches this element?
   <h1 class="big" id="logo">Hello</h1> (a) .logo (b) h1 (c) #big (d) h2
10. 10.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="logo"> (c) <div class="menu"> (d) <h2 class="menu">
11. 11.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
12. 12.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
13. 13.True or false: .big is an id selector. (a) False (b) True
14. 14.True or false: #top is an element selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) .hero (b) #top (c) .star (d) #hero
16. 16.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
17. 17.True or false: body is an id selector. (a) False (b) True
18. 18.🎯 Can many elements share the same class? (a) Yes (b) No
19. 19.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <p class="menu"> (c) <h1 class="big"> (d) <p id="menu">
20. 20.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .top (b) #big (c) #intro (d) span
21. 21.🎯 Which element does the selector #intro style? (a) <li class="big"> (b) <h2 id="main"> (c) <h2 class="intro"> (d) <h2 id="intro">
22. 22.True or false: #main is an id selector. (a) False (b) True
23. 23.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
24. 24.True or false: p is an id selector. (a) True (b) False
25. 25.True or false: .card is a class selector. (a) True (b) False
26. 26.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 id="note"> (c) <h1 class="note"> (d) <h2 class="red">
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) #end (b) #star (c) .menu (d) .star
28. 28.🎯 Which CSS selector matches this element?
    <div class="red" id="hero">Hello</div> (a) #red (b) .hero (c) #top (d) .red
29. 29.True or false: h1 is an id selector. (a) False (b) True
30. 30.True or false: #top is an id selector. (a) True (b) False
31. 31.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector .star style? (a) <h2 class="star"> (b) <li class="note"> (c) <h2 id="star"> (d) <h2 class="menu">
33. 33.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <div class="big"> (c) <li id="end"> (d) <li id="hero">
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #menu (b) .note (c) #top (d) h2
35. 35.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) .red (b) #intro (c) div (d) #top
36. 36.True or false: img is a class selector. (a) False (b) True
37. 37.🎯 Which element does the selector #end style? (a) <h2 id="hero"> (b) <h2 id="end"> (c) <li class="red"> (d) <h2 class="end">
38. 38.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) span (b) .star (c) p (d) #box
39. 39.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) .end (b) p (c) .box (d) h1
40. 40.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector

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