CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 237 · 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: p is an element selector. (a) True (b) False
2. 2.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
3. 3.True or false: .card is an element selector. (a) True (b) False
4. 4.🎯 Which CSS selector matches this element?
   <h2 class="note" id="end">Hello</h2> (a) #hero (b) .note (c) .big (d) li
5. 5.True or false: #logo is a class selector. (a) False (b) True
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h1> (c) <li id="intro"> (d) <h2 class="menu">
8. 8.True or false: .big is a class selector. (a) False (b) True
9. 9.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
10. 10.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
11. 11.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="red" id="hero">Hello</h1> (a) .box (b) #red (c) h2 (d) h1
14. 14.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <li class="menu"> (c) <li class="star"> (d) <div class="note">
15. 15.True or false: h1 is a class selector. (a) False (b) True
16. 16.True or false: #main is a class selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <div class="note" id="hero">Hello</div> (a) #note (b) .big (c) #top (d) div
18. 18.True or false: .big is an id selector. (a) False (b) True
19. 19.True or false: body is an id selector. (a) False (b) True
20. 20.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) .red (c) #big (d) div
21. 21.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) #box (b) .top (c) .star (d) #top
22. 22.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) p (b) #box (c) span (d) .star
23. 23.True or false: li is an element selector. (a) False (b) True
24. 24.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) #end (b) .note (c) #logo (d) #menu
26. 26.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) .end (b) div (c) span (d) .star
27. 27.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) h1 (b) .main (c) p (d) #menu
28. 28.True or false: h1 is an id selector. (a) True (b) False
29. 29.True or false: body is a class selector. (a) False (b) True
30. 30.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h2 class="menu"> (c) <h1 class="intro"> (d) <h1 id="intro">
31. 31.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
32. 32.🎯 Which element does the selector .box style? (a) <li id="box"> (b) <li class="box"> (c) <div class="menu"> (d) <li class="star">
33. 33.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) #end (b) p (c) .note (d) .logo
34. 34.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <h2 class="star"> (c) <li> (d) <span id="top">
35. 35.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) #note (b) .big (c) #main (d) #intro
36. 36.🎯 Which element does the selector #hero style? (a) <h1 id="hero"> (b) <h2 class="star"> (c) <h1 id="top"> (d) <h1 class="hero">
37. 37.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <p class="menu"> (c) <span id="logo"> (d) <span class="logo">
38. 38.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="star"> (c) <li class="star"> (d) <div id="main">
40. 40.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) p (b) .red (c) #intro (d) .big

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