CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 884 · 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?
   <h1 class="red" id="top">Hello</h1> (a) #top (b) #red (c) .top (d) h2
2. 2.🎯 Which element does the selector .big style? (a) <p id="big"> (b) <p class="big"> (c) <p class="red"> (d) <h1 class="box">
3. 3.🎯 Which sign starts a class selector? (a) . (b) & (c) # (d) @
4. 4.True or false: #top is an element selector. (a) True (b) False
5. 5.True or false: p is a class selector. (a) False (b) True
6. 6.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.True or false: h1 is an id selector. (a) True (b) False
9. 9.🎯 Which CSS selector matches this element?
   <div class="big" id="logo">Hello</div> (a) #big (b) .logo (c) .red (d) div
10. 10.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) li (b) .big (c) #note (d) .top
11. 11.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h2 class="red"> (c) <h1 class="note"> (d) <h1 id="note">
12. 12.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) .top (b) #intro (c) #top (d) .menu
14. 14.🎯 Which element does the selector span style? (a) <h1 class="menu"> (b) <h2 id="logo"> (c) <p> (d) <span class="menu">
15. 15.True or false: .card is an id selector. (a) True (b) False
16. 16.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
17. 17.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .
18. 18.🎯 Which element does the selector #top style? (a) <li class="star"> (b) <h2 class="top"> (c) <h2 id="top"> (d) <h2 id="intro">
19. 19.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
20. 20.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) #intro (b) .top (c) .big (d) div
21. 21.True or false: #top is a class selector. (a) False (b) True
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) .main (b) .star (c) #logo (d) .box
23. 23.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) #note (b) h2 (c) h1 (d) .top
26. 26.🎯 Which element does the selector #end style? (a) <h2 class="end"> (b) <h2 id="hero"> (c) <li class="big"> (d) <h2 id="end">
27. 27.🎯 Which element does the selector div style? (a) <p class="star"> (b) <h1 id="top"> (c) <div class="star"> (d) <span>
28. 28.True or false: .star is a class selector. (a) True (b) False
29. 29.🎯 Which element does the selector p style? (a) <h1> (b) <li id="intro"> (c) <h2 class="big"> (d) <p class="big">
30. 30.🎯 Which element does the selector .big style? (a) <li class="box"> (b) <h2 id="big"> (c) <h2 class="red"> (d) <h2 class="big">
31. 31.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <p class="menu"> (c) <h1 class="big"> (d) <p id="menu">
32. 32.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <span> (c) <div class="red"> (d) <p class="red">
33. 33.True or false: .star is an id selector. (a) True (b) False
34. 34.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) .box (b) #hero (c) p (d) #top
35. 35.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
36. 36.True or false: .menu is a class selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #end (b) #big (c) .end (d) #hero
38. 38.True or false: li is an element selector. (a) False (b) True
39. 39.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <h2 class="menu"> (c) <li> (d) <span id="end">
40. 40.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) .big (b) .note (c) #note (d) #logo

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