CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 360 · 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="hero">Hello</span> (a) #top (b) .menu (c) span (d) #star
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="main">Hello</span> (a) #star (b) #logo (c) .star (d) .menu
3. 3.🎯 Which CSS selector matches this element?
   <li class="star" id="end">Hello</li> (a) .menu (b) li (c) .end (d) #hero
4. 4.🎯 Which CSS selector matches this element?
   <li class="box" id="top">Hello</li> (a) #intro (b) li (c) .star (d) #box
5. 5.🎯 Which CSS selector matches this element?
   <span class="menu" id="hero">Hello</span> (a) .hero (b) p (c) .note (d) .menu
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="star" id="end">Hello</h1> (a) h2 (b) .menu (c) #end (d) #hero
7. 7.🎯 Which element does the selector .big style? (a) <div id="big"> (b) <span class="box"> (c) <div class="big"> (d) <div class="red">
8. 8.🎯 Which element does the selector #logo style? (a) <span class="note"> (b) <div class="logo"> (c) <div id="end"> (d) <div id="logo">
9. 9.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
10. 10.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) .big (b) #hero (c) #big (d) p
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) #hero (b) #star (c) h1 (d) .end
12. 12.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
13. 13.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
14. 14.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
16. 16.🎯 Can many elements share the same class? (a) No (b) Yes
17. 17.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <h2 class="note"> (c) <h2 class="menu"> (d) <li class="big">
18. 18.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 Which CSS selector matches this element?
    <div class="menu" id="end">Hello</div> (a) span (b) .note (c) .end (d) div
20. 20.🎯 Which CSS selector matches this element?
    <p class="note" id="hero">Hello</p> (a) .big (b) #note (c) .note (d) .hero
21. 21.🎯 Which CSS selector matches this element?
    <span class="box" id="logo">Hello</span> (a) p (b) #logo (c) #end (d) #box
22. 22.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) .top (b) #intro (c) p (d) span
23. 23.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) span (b) #top (c) #hero (d) #menu
25. 25.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="red" id="logo">Hello</h1> (a) .red (b) .box (c) .logo (d) h2
27. 27.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <li id="intro"> (c) <h1> (d) <p class="big">
28. 28.🎯 Which element does the selector h2 style? (a) <h2 class="note"> (b) <div class="note"> (c) <li> (d) <span id="top">
29. 29.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) span (b) #box (c) #main (d) #logo
30. 30.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
31. 31.True or false: .note is an element selector. (a) True (b) False
32. 32.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) h1 (b) #logo (c) .menu (d) #star
34. 34.🎯 Which element does the selector p style? (a) <li id="end"> (b) <p class="star"> (c) <h2 class="star"> (d) <h1>
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .top (b) li (c) #top (d) #star
36. 36.True or false: #top is an element selector. (a) True (b) False
37. 37.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
38. 38.True or false: .menu is an element selector. (a) True (b) False
39. 39.True or false: h1 is a class selector. (a) True (b) False
40. 40.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="note"> (c) <div class="red"> (d) <li class="big">

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