CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 895 · 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) a class selector (b) an id selector (c) an element selector
2. 2.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <li id="main"> (d) <h2 class="red">
3. 3.🎯 Which element does the selector #logo style? (a) <h1 class="big"> (b) <p id="logo"> (c) <p class="logo"> (d) <p id="end">
4. 4.🎯 Which element does the selector #hero style? (a) <h2 class="menu"> (b) <h1 class="hero"> (c) <h1 id="hero"> (d) <h1 id="top">
5. 5.🎯 Which element does the selector div style? (a) <span> (b) <div class="big"> (c) <h1 id="intro"> (d) <p class="big">
6. 6.True or false: h1 is a class selector. (a) True (b) False
7. 7.🎯 Can many elements share the same class? (a) Yes (b) No
8. 8.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which element does the selector span style? (a) <span class="red"> (b) <h1 class="red"> (c) <p> (d) <h2 id="hero">
10. 10.🎯 Which element does the selector span style? (a) <p> (b) <span class="menu"> (c) <h1 class="menu"> (d) <h2 id="intro">
11. 11.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
13. 13.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) #red (b) .end (c) .red (d) h1
14. 14.True or false: .note is a class selector. (a) True (b) False
15. 15.🎯 Which element does the selector #hero style? (a) <h2 id="top"> (b) <h2 class="hero"> (c) <h2 id="hero"> (d) <li class="red">
16. 16.True or false: #top is an id selector. (a) True (b) False
17. 17.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="star"> (d) <li class="menu">
18. 18.🎯 Which CSS selector matches this element?
    <div class="star" id="top">Hello</div> (a) #intro (b) div (c) span (d) .menu
19. 19.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
20. 20.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) li (b) #red (c) div (d) .box
21. 21.True or false: #logo is an element selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) .top (b) #big (c) h1 (d) #top
23. 23.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
24. 24.True or false: .menu is an id selector. (a) True (b) False
25. 25.🎯 Which element does the selector div style? (a) <p class="note"> (b) <span> (c) <h1 id="intro"> (d) <div class="note">
26. 26.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) div (b) #top (c) span (d) .hero
27. 27.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <p class="menu"> (c) <h1 id="main"> (d) <span>
28. 28.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
29. 29.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
30. 30.True or false: img is a class selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) #menu (b) p (c) #end (d) .end
32. 32.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .hero (b) #top (c) .star (d) .box
33. 33.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <p id="top"> (c) <h1 class="star"> (d) <p class="top">
35. 35.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
36. 36.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) div (b) #end (c) .logo (d) li
37. 37.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
38. 38.🎯 Which element does the selector .menu style? (a) <h1 class="big"> (b) <p class="note"> (c) <p class="menu"> (d) <p id="menu">
39. 39.True or false: p is a class selector. (a) True (b) False
40. 40.True or false: #hero is an id selector. (a) True (b) False

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