CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 931 · 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?
   <h2 class="note" id="hero">Hello</h2> (a) .big (b) #note (c) #top (d) h2
2. 2.🎯 Which CSS selector matches this element?
   <p class="menu" id="top">Hello</p> (a) h1 (b) p (c) #intro (d) .top
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="big" id="intro">Hello</h2> (a) #big (b) #main (c) h2 (d) li
4. 4.True or false: body is an id selector. (a) True (b) False
5. 5.🎯 Which element does the selector li style? (a) <div> (b) <li class="note"> (c) <p id="logo"> (d) <span class="note">
6. 6.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
7. 7.🎯 Which element does the selector #top style? (a) <div class="menu"> (b) <li id="top"> (c) <li id="intro"> (d) <li class="top">
8. 8.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Can many elements share the same class? (a) No (b) Yes
10. 10.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="main"> (c) <h1 class="red"> (d) <li class="red">
11. 11.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="red"> (d) <div class="big">
12. 12.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="box"> (d) <div class="logo">
13. 13.True or false: .card is a class selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) #top (b) #hero (c) .hero (d) .menu
15. 15.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) .box (b) h1 (c) #hero (d) .hero
16. 16.True or false: #end is an element selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) h1 (b) #hero (c) .menu (d) #top
18. 18.🎯 Which element does the selector .box style? (a) <p id="box"> (b) <h1 class="menu"> (c) <p class="star"> (d) <p class="box">
19. 19.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
20. 20.🎯 Which element does the selector .red style? (a) <h1 class="star"> (b) <p id="red"> (c) <p class="box"> (d) <p class="red">
21. 21.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #logo (b) #note (c) .main (d) .note
22. 22.🎯 Which element does the selector .box style? (a) <li id="box"> (b) <div class="menu"> (c) <li class="box"> (d) <li class="star">
23. 23.True or false: h1 is an element selector. (a) True (b) False
24. 24.🎯 Which element does the selector #main style? (a) <li id="logo"> (b) <li id="main"> (c) <li class="main"> (d) <div class="big">
25. 25.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 2 (d) 5
26. 26.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) .hero (b) .menu (c) #star (d) p
27. 27.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 class="menu"> (c) <h1 id="menu"> (d) <h1 class="note">
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) #end (b) #hero (c) .end (d) h2
29. 29.True or false: .note is a class selector. (a) False (b) True
30. 30.True or false: img is an element selector. (a) False (b) True
31. 31.True or false: .card is an element selector. (a) True (b) False
32. 32.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
33. 33.🎯 Which element does the selector span style? (a) <span class="big"> (b) <h2 id="top"> (c) <p> (d) <h1 class="big">
34. 34.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) span (b) #box (c) div (d) #end
35. 35.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <p class="box"> (d) <h2 class="box">
36. 36.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) #red (b) #logo (c) .box (d) #main
37. 37.🎯 What kind of selector is .note? (a) a class selector (b) an element selector (c) an id selector
38. 38.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
39. 39.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &

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