CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 212 · 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: .star is an element selector. (a) True (b) False
2. 2.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
3. 3.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
4. 4.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
5. 5.🎯 Which CSS selector matches this element?
   <div class="big" id="main">Hello</div> (a) .main (b) #logo (c) span (d) #main
6. 6.True or false: li is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <li class="star" id="end">Hello</li> (a) .end (b) #star (c) #end (d) div
8. 8.🎯 Which CSS selector matches this element?
   <p class="menu" id="hero">Hello</p> (a) p (b) #top (c) #menu (d) .hero
9. 9.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #main (b) p (c) h1 (d) #menu
12. 12.🎯 Which element does the selector .star style? (a) <h1 class="menu"> (b) <h2 class="note"> (c) <h1 id="star"> (d) <h1 class="star">
13. 13.🎯 Which element does the selector .menu style? (a) <p class="big"> (b) <span id="menu"> (c) <span class="note"> (d) <span class="menu">
14. 14.🎯 Which element does the selector .big style? (a) <li class="big"> (b) <li class="red"> (c) <li id="big"> (d) <div class="box">
15. 15.True or false: .card is an element selector. (a) False (b) True
16. 16.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
17. 17.True or false: .card is a class selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) .end (b) .note (c) .big (d) #hero
19. 19.True or false: #hero is an element selector. (a) False (b) True
20. 20.True or false: h1 is an id selector. (a) True (b) False
21. 21.🎯 Which element does the selector div style? (a) <div class="star"> (b) <span> (c) <h1 id="intro"> (d) <p class="star">
22. 22.🎯 Which sign starts an id selector? (a) @ (b) & (c) . (d) #
23. 23.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) .note (b) #menu (c) .menu (d) span
24. 24.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) h1 (b) p (c) .end (d) .big
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) .box (b) h2 (c) #main (d) .red
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) #note (b) #intro (c) .big (d) #main
27. 27.🎯 Which element does the selector #top style? (a) <h2 class="red"> (b) <h1 id="top"> (c) <h1 id="intro"> (d) <h1 class="top">
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) h2 (b) h1 (c) #menu (d) .top
29. 29.True or false: .big is an element selector. (a) False (b) True
30. 30.🎯 Can many elements share the same class? (a) Yes (b) No
31. 31.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) #end (b) .logo (c) li (d) .star
32. 32.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) #note (b) .intro (c) .big (d) .note
34. 34.🎯 Which element does the selector .star style? (a) <div id="star"> (b) <div class="menu"> (c) <span class="note"> (d) <div class="star">
35. 35.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) .box (b) .red (c) #intro (d) #red
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="red" id="hero">Hello</h2> (a) h2 (b) #red (c) .box (d) li
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) li (b) #end (c) #hero (d) .end
38. 38.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) div (b) span (c) .red (d) #big
39. 39.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) .star (b) #star (c) #intro (d) .top
40. 40.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector

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