CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 722 · 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: #logo is an id selector. (a) True (b) False
2. 2.🎯 Can many elements share the same class? (a) Yes (b) No
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="big" id="hero">Hello</h2> (a) li (b) .red (c) .big (d) #top
4. 4.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
5. 5.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="hero">Hello</h2> (a) li (b) .hero (c) #hero (d) #top
7. 7.🎯 Which CSS selector matches this element?
   <p class="menu" id="top">Hello</p> (a) .top (b) .note (c) .menu (d) #menu
8. 8.True or false: .big is an element selector. (a) False (b) True
9. 9.🎯 Which element does the selector .note style? (a) <p class="red"> (b) <span id="note"> (c) <span class="note"> (d) <span class="big">
10. 10.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <p class="star"> (d) <h2 class="star">
12. 12.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #end (b) #note (c) .note (d) .logo
13. 13.True or false: p is a class selector. (a) True (b) False
14. 14.True or false: .card is a class selector. (a) False (b) True
15. 15.True or false: .note is an element selector. (a) True (b) False
16. 16.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .note (b) #menu (c) #intro (d) .menu
18. 18.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
19. 19.True or false: img is an id selector. (a) False (b) True
20. 20.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) #box (b) p (c) .star (d) span
21. 21.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <span class="star"> (c) <div class="red"> (d) <div class="box">
22. 22.🎯 Which CSS selector matches this element?
    <span class="big" id="logo">Hello</span> (a) p (b) #end (c) .big (d) .logo
23. 23.🎯 Which element does the selector #hero style? (a) <p id="hero"> (b) <h1 class="menu"> (c) <p id="top"> (d) <p class="hero">
24. 24.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
25. 25.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <div id="logo"> (c) <span class="star"> (d) <div class="logo">
26. 26.True or false: #top is a class selector. (a) True (b) False
27. 27.True or false: .note is a class selector. (a) True (b) False
28. 28.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
29. 29.True or false: #end is an id selector. (a) False (b) True
30. 30.True or false: .card is an element selector. (a) False (b) True
31. 31.🎯 Which element does the selector #logo style? (a) <h1 class="logo"> (b) <h1 id="logo"> (c) <h1 id="end"> (d) <h2 class="note">
32. 32.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) 2 (d) any number
33. 33.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) #red (b) .box (c) .red (d) .top
34. 34.🎯 Which element does the selector div style? (a) <p class="star"> (b) <div class="star"> (c) <h1 id="top"> (d) <span>
35. 35.🎯 Which element does the selector li style? (a) <li class="box"> (b) <div> (c) <p id="hero"> (d) <span class="box">
36. 36.🎯 Which element does the selector #logo style? (a) <h2 id="end"> (b) <h2 id="logo"> (c) <h2 class="logo"> (d) <li class="menu">
37. 37.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #menu (b) h1 (c) #intro (d) h2
39. 39.🎯 Which element does the selector .box style? (a) <h2 class="box"> (b) <h2 class="star"> (c) <h2 id="box"> (d) <li class="menu">
40. 40.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <span class="menu"> (c) <span id="star"> (d) <p class="note">

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