CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 756 · 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 element does the selector #end style? (a) <div class="end"> (b) <span class="note"> (c) <div id="hero"> (d) <div id="end">
2. 2.🎯 Which CSS selector matches this element?
   <li class="box" id="main">Hello</li> (a) li (b) #logo (c) div (d) #box
3. 3.🎯 Which sign starts a class selector? (a) . (b) # (c) & (d) @
4. 4.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
5. 5.True or false: #logo is an id selector. (a) False (b) True
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="red" id="main">Hello</h1> (a) .box (b) h1 (c) #red (d) h2
7. 7.True or false: .big is an element selector. (a) True (b) False
8. 8.🎯 Which element does the selector .box style? (a) <li class="menu"> (b) <h2 class="star"> (c) <h2 id="box"> (d) <h2 class="box">
9. 9.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.True or false: .menu is a class selector. (a) True (b) False
12. 12.🎯 Which CSS selector matches this element?
    <span class="menu" id="hero">Hello</span> (a) .menu (b) .hero (c) #menu (d) .note
13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) .intro (b) #intro (c) p (d) .big
14. 14.🎯 Which element does the selector #main style? (a) <p class="main"> (b) <p id="logo"> (c) <p id="main"> (d) <h1 class="note">
15. 15.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <div class="big" id="main">Hello</div> (a) .main (b) #logo (c) div (d) #big
17. 17.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
18. 18.True or false: #main is an id selector. (a) True (b) False
19. 19.🎯 Which element does the selector div style? (a) <p class="red"> (b) <span> (c) <div class="red"> (d) <h1 id="main">
20. 20.🎯 Which element does the selector .note style? (a) <span class="note"> (b) <span id="note"> (c) <p class="red"> (d) <span class="big">
21. 21.True or false: h1 is an element selector. (a) False (b) True
22. 22.🎯 Which element does the selector span style? (a) <p> (b) <span class="box"> (c) <h2 id="main"> (d) <h1 class="box">
23. 23.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
24. 24.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <p> (c) <span class="menu"> (d) <h1 class="menu">
25. 25.True or false: #end is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) .intro (b) span (c) div (d) #big
27. 27.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) h1 (b) .note (c) .top (d) .big
28. 28.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
29. 29.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) .note (b) #note (c) h2 (d) .big
31. 31.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) #intro (b) h1 (c) #main (d) .intro
32. 32.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) #logo (b) .logo (c) #end (d) h1
33. 33.True or false: #logo is a class selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .big (b) #top (c) .hero (d) #hero
35. 35.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) #logo (b) .menu (c) #star (d) .logo
36. 36.True or false: body is an element selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) #big (b) #main (c) .intro (d) .big
38. 38.True or false: .card is an id selector. (a) True (b) False
39. 39.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="menu"> (c) <h2 id="main"> (d) <h2 id="intro">
40. 40.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) span (b) .logo (c) #end (d) div

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