CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 956 · 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 .note? (a) an id selector (b) an element selector (c) a class selector
2. 2.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
3. 3.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
4. 4.🎯 Which CSS selector matches this element?
   <span class="menu" id="top">Hello</span> (a) #menu (b) #intro (c) span (d) p
5. 5.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <li id="logo"> (c) <h1> (d) <p class="menu">
6. 6.True or false: h1 is an element selector. (a) True (b) False
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="intro"> (c) <h1 class="menu"> (d) <li class="menu">
9. 9.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
10. 10.True or false: #top is an id selector. (a) True (b) False
11. 11.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) 2 (d) any number
12. 12.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Which element does the selector #end style? (a) <p class="red"> (b) <span id="hero"> (c) <span class="end"> (d) <span id="end">
14. 14.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) .box (b) #end (c) .logo (d) .red
15. 15.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) .menu (b) .note (c) h1 (d) #menu
16. 16.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) #big (b) .red (c) #hero (d) .big
17. 17.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <h1 class="menu"> (c) <p id="box"> (d) <p class="box">
18. 18.🎯 Which element does the selector .star style? (a) <h2 class="menu"> (b) <h2 id="star"> (c) <h2 class="star"> (d) <li class="note">
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) h1 (b) #big (c) #main (d) .intro
20. 20.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <h2> (c) <div id="intro"> (d) <li class="big">
21. 21.🎯 Which element does the selector .big style? (a) <li class="box"> (b) <h2 class="big"> (c) <h2 class="red"> (d) <h2 id="big">
22. 22.🎯 Which sign starts an id selector? (a) @ (b) # (c) . (d) &
23. 23.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span id="intro"> (c) <p class="star"> (d) <span class="top">
24. 24.True or false: #main is a class selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1> (a) .menu (b) #star (c) #logo (d) .star
26. 26.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #end (b) #note (c) .note (d) h1
27. 27.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which element does the selector div style? (a) <div class="note"> (b) <p class="note"> (c) <h1 id="end"> (d) <span>
29. 29.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) #star (b) #top (c) .star (d) .menu
31. 31.True or false: .menu is a class selector. (a) True (b) False
32. 32.True or false: p is an element selector. (a) True (b) False
33. 33.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) .end (b) span (c) #box (d) div
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) #menu (c) h1 (d) #intro
36. 36.🎯 Which CSS selector matches this element?
    <div class="star" id="hero">Hello</div> (a) .menu (b) #star (c) .star (d) span
37. 37.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
38. 38.🎯 Which element does the selector #hero style? (a) <div class="note"> (b) <li class="hero"> (c) <li id="top"> (d) <li id="hero">
39. 39.True or false: .menu is an id selector. (a) False (b) True
40. 40.🎯 Which element does the selector .note style? (a) <span id="note"> (b) <p class="red"> (c) <span class="note"> (d) <span class="big">

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