CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 789 · 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.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 Which element does the selector li style? (a) <div> (b) <p id="intro"> (c) <span class="big"> (d) <li class="big">
3. 3.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <div class="box"> (c) <span> (d) <p class="box">
4. 4.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
5. 5.🎯 Which CSS selector matches this element?
   <span class="red" id="intro">Hello</span> (a) .box (b) #red (c) .intro (d) #intro
6. 6.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
7. 7.True or false: .card is a class selector. (a) False (b) True
8. 8.True or false: .card is an id selector. (a) False (b) True
9. 9.🎯 Which CSS selector matches this element?
   <div class="star" id="main">Hello</div> (a) #star (b) .star (c) .menu (d) span
10. 10.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) .intro (b) #big (c) #main (d) span
11. 11.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .top (b) .note (c) #menu (d) .menu
12. 12.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
13. 13.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <h1> (c) <p class="star"> (d) <li id="intro">
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
16. 16.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) .box (b) .red (c) #main (d) p
17. 17.🎯 Which CSS selector matches this element?
    <li class="box" id="intro">Hello</li> (a) #main (b) .box (c) div (d) .star
18. 18.🎯 Which element does the selector #main style? (a) <div class="box"> (b) <li class="main"> (c) <li id="logo"> (d) <li id="main">
19. 19.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="star" id="hero">Hello</h1> (a) h1 (b) .menu (c) #star (d) .hero
21. 21.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <div class="red"> (c) <li class="note"> (d) <li class="big">
23. 23.🎯 Which element does the selector #hero style? (a) <p class="hero"> (b) <p id="hero"> (c) <p id="top"> (d) <h1 class="box">
24. 24.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <p> (c) <h1 class="big"> (d) <span class="big">
25. 25.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) #top (b) .note (c) p (d) .hero
26. 26.True or false: #logo is an id selector. (a) False (b) True
27. 27.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) #hero (b) span (c) #end (d) #box
28. 28.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
29. 29.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
30. 30.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) h1 (b) .end (c) #big (d) #end
31. 31.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) p (b) #logo (c) .main (d) #big
32. 32.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
33. 33.🎯 Which element does the selector .note style? (a) <p class="note"> (b) <p id="note"> (c) <h1 class="red"> (d) <p class="big">
34. 34.True or false: body is an id selector. (a) True (b) False
35. 35.True or false: #logo is a class selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) #end (b) #note (c) p (d) #logo
37. 37.True or false: .menu is a class selector. (a) False (b) True
38. 38.🎯 Which element does the selector li style? (a) <li class="box"> (b) <div> (c) <p id="intro"> (d) <span class="box">
39. 39.🎯 Which element does the selector .menu style? (a) <h1 class="big"> (b) <p class="menu"> (c) <p id="menu"> (d) <p class="note">
40. 40.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector

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