CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 153 · 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="menu" id="end">Hello</h2> (a) #menu (b) #end (c) .end (d) li
2. 2.🎯 Which element does the selector #hero style? (a) <h2 class="hero"> (b) <h2 id="hero"> (c) <li class="red"> (d) <h2 id="top">
3. 3.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
4. 4.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
5. 5.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="intro"> (c) <h1> (d) <p class="star">
6. 6.True or false: p is an id selector. (a) True (b) False
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.🎯 Which CSS selector matches this element?
   <p class="big" id="logo">Hello</p> (a) p (b) #end (c) #big (d) .logo
9. 9.🎯 Which CSS selector matches this element?
   <div class="note" id="top">Hello</div> (a) #note (b) .big (c) div (d) .top
10. 10.True or false: #main is an element selector. (a) True (b) False
11. 11.🎯 Which element does the selector .red style? (a) <p class="red"> (b) <p id="red"> (c) <h1 class="star"> (d) <p class="box">
12. 12.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
13. 13.🎯 Which element does the selector #end style? (a) <p id="hero"> (b) <p class="end"> (c) <h1 class="big"> (d) <p id="end">
14. 14.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) #intro (b) .top (c) #red (d) div
15. 15.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) #menu (b) #logo (c) #end (d) .note
16. 16.🎯 Which element does the selector p style? (a) <h1> (b) <p class="red"> (c) <h2 class="red"> (d) <li id="intro">
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="main">Hello</h2> (a) .note (b) h2 (c) #menu (d) .main
18. 18.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
19. 19.True or false: li is an id selector. (a) False (b) True
20. 20.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) p (b) .note (c) #intro (d) #menu
21. 21.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
22. 22.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
23. 23.True or false: .star is an element selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) h1 (b) .menu (c) .intro (d) .note
25. 25.True or false: #hero is a class selector. (a) False (b) True
26. 26.🎯 Which element does the selector span style? (a) <h1 class="star"> (b) <p> (c) <h2 id="main"> (d) <span class="star">
27. 27.True or false: .star is a class selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) #star (b) .top (c) #top (d) .menu
29. 29.True or false: #end is an id selector. (a) True (b) False
30. 30.True or false: p is a class selector. (a) True (b) False
31. 31.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) .logo (b) #star (c) div (d) li
32. 32.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) .box (b) h1 (c) .hero (d) #hero
33. 33.True or false: h1 is an element selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) .intro (b) #note (c) #intro (d) h1
35. 35.🎯 Which element does the selector #top style? (a) <div class="big"> (b) <li id="intro"> (c) <li id="top"> (d) <li class="top">
36. 36.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
37. 37.🎯 Which element does the selector .star style? (a) <div id="star"> (b) <div class="menu"> (c) <span class="note"> (d) <div class="star">
38. 38.🎯 Which element does the selector span style? (a) <h2 id="intro"> (b) <h1 class="note"> (c) <p> (d) <span class="note">
39. 39.🎯 Which element does the selector #end style? (a) <h2 id="hero"> (b) <h2 class="end"> (c) <h2 id="end"> (d) <li class="big">
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) .note (b) #logo (c) h2 (d) h1

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