CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 794 · 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 sign starts a class selector? (a) . (b) & (c) @ (d) #
2. 2.True or false: #hero is an element selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <p class="star" id="top">Hello</p> (a) .star (b) .top (c) h1 (d) #intro
4. 4.🎯 Which CSS selector matches this element?
   <span class="note" id="top">Hello</span> (a) .top (b) #intro (c) .big (d) #top
5. 5.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
6. 6.True or false: .menu is a class selector. (a) False (b) True
7. 7.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 Which CSS selector matches this element?
   <li class="note" id="logo">Hello</li> (a) .logo (b) div (c) #end (d) li
9. 9.True or false: .star is a class selector. (a) True (b) False
10. 10.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
11. 11.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) .end (b) #hero (c) span (d) p
12. 12.True or false: #main is an element selector. (a) True (b) False
13. 13.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
14. 14.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="star"> (c) <h2 id="intro"> (d) <h2 id="main">
15. 15.True or false: #top is an element selector. (a) True (b) False
16. 16.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
17. 17.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) #hero (b) p (c) .big (d) #note
18. 18.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
19. 19.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <span id="star"> (c) <span class="menu"> (d) <p class="note">
20. 20.True or false: #logo is an element selector. (a) True (b) False
21. 21.🎯 Can many elements share the same class? (a) No (b) Yes
22. 22.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
23. 23.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div> (a) .intro (b) div (c) #main (d) .menu
24. 24.True or false: #end is an id selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) #star (b) #logo (c) .star (d) li
26. 26.True or false: h1 is an id selector. (a) True (b) False
27. 27.True or false: .note is an id selector. (a) True (b) False
28. 28.True or false: li is an element selector. (a) False (b) True
29. 29.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .logo (b) #big (c) .big (d) .red
30. 30.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="big"> (c) <p class="big"> (d) <li id="logo">
31. 31.🎯 Which CSS selector matches this element?
    <li class="menu" id="logo">Hello</li> (a) #menu (b) .menu (c) .logo (d) div
32. 32.True or false: .card is a class selector. (a) True (b) False
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) .star (b) #hero (c) #box (d) .hero
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) h2 (b) #big (c) .intro (d) .big
35. 35.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) .logo (b) #note (c) #end (d) span
36. 36.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 id="red"> (c) <li class="star"> (d) <h2 class="red">
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) li (b) #top (c) #note (d) #hero
38. 38.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) #logo (b) .big (c) #note (d) .note
39. 39.🎯 Which element does the selector #end style? (a) <p class="box"> (b) <span id="hero"> (c) <span class="end"> (d) <span id="end">
40. 40.🎯 Which element does the selector #hero style? (a) <p class="hero"> (b) <h1 class="box"> (c) <p id="top"> (d) <p id="hero">

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