CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 750 · 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: .note is a class selector. (a) False (b) True
2. 2.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="star"> (d) <li class="menu">
3. 3.True or false: li is an element selector. (a) True (b) False
4. 4.🎯 Which CSS selector matches this element?
   <p class="star" id="intro">Hello</p> (a) h1 (b) #star (c) #main (d) #intro
5. 5.🎯 Which CSS selector matches this element?
   <h2 class="note" id="logo">Hello</h2> (a) li (b) h2 (c) .big (d) #note
6. 6.🎯 Which CSS selector matches this element?
   <li class="big" id="logo">Hello</li> (a) .logo (b) .red (c) div (d) .big
7. 7.True or false: .star is an id selector. (a) True (b) False
8. 8.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <span class="big"> (c) <h2 id="logo"> (d) <p>
9. 9.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span id="main"> (c) <span class="intro"> (d) <p class="big">
10. 10.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
11. 11.True or false: #main is an id selector. (a) True (b) False
12. 12.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) .red (b) h2 (c) .big (d) #big
14. 14.True or false: h1 is an element selector. (a) True (b) False
15. 15.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
16. 16.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
17. 17.True or false: #end is an id selector. (a) True (b) False
18. 18.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
19. 19.True or false: .menu is a class selector. (a) True (b) False
20. 20.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) li (b) #end (c) #big (d) .red
21. 21.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) .intro (b) p (c) #note (d) h1
22. 22.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <h2 id="main"> (c) <li class="box"> (d) <h2 id="intro">
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) #end (b) h2 (c) .menu (d) #star
24. 24.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <li class="big" id="intro">Hello</li> (a) #big (b) div (c) .red (d) .big
26. 26.🎯 Which element does the selector li style? (a) <div> (b) <span class="star"> (c) <p id="top"> (d) <li class="star">
27. 27.🎯 Which element does the selector .note style? (a) <span id="note"> (b) <span class="big"> (c) <p class="red"> (d) <span class="note">
28. 28.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="box"> (c) <span id="box"> (d) <span class="star">
29. 29.🎯 Can many elements share the same class? (a) Yes (b) No
30. 30.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
31. 31.🎯 Which CSS selector matches this element?
    <div class="big" id="top">Hello</div> (a) .big (b) .red (c) #big (d) .top
32. 32.True or false: .star is a class selector. (a) True (b) False
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) #top (b) li (c) #star (d) #hero
34. 34.🎯 Which element does the selector .red style? (a) <p class="box"> (b) <p class="red"> (c) <p id="red"> (d) <h1 class="star">
35. 35.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
36. 36.🎯 Which element does the selector .big style? (a) <p class="red"> (b) <h1 class="box"> (c) <p class="big"> (d) <p id="big">
37. 37.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <span> (c) <div class="note"> (d) <p class="note">
38. 38.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="main"> (c) <div class="star"> (d) <li id="intro">
39. 39.🎯 Which element does the selector #main style? (a) <h1 id="logo"> (b) <h2 class="big"> (c) <h1 id="main"> (d) <h1 class="main">
40. 40.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) div (b) .main (c) li (d) .note

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