CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 988 · 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 element does the selector span style? (a) <h2 id="main"> (b) <p> (c) <h1 class="note"> (d) <span class="note">
2. 2.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
3. 3.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
4. 4.🎯 Which element does the selector #hero style? (a) <li class="box"> (b) <h2 id="top"> (c) <h2 id="hero"> (d) <h2 class="hero">
5. 5.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="menu"> (c) <h2> (d) <h1 class="menu">
6. 6.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="box" id="top">Hello</h1> (a) #box (b) .star (c) h2 (d) #top
8. 8.True or false: .note is a class selector. (a) True (b) False
9. 9.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span class="intro"> (c) <p class="note"> (d) <span id="main">
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.True or false: .note is an element selector. (a) True (b) False
12. 12.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
13. 13.True or false: li is an element selector. (a) False (b) True
14. 14.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <div class="red"> (c) <div class="box"> (d) <span class="star">
15. 15.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .box (b) p (c) h1 (d) #red
16. 16.True or false: #top is a class selector. (a) True (b) False
17. 17.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
18. 18.True or false: #end is an id selector. (a) False (b) True
19. 19.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <span class="big"> (c) <h2 id="top"> (d) <p>
20. 20.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) .box (b) .logo (c) #box (d) .star
21. 21.🎯 Which element does the selector h2 style? (a) <h2 class="menu"> (b) <span id="intro"> (c) <li> (d) <div class="menu">
22. 22.True or false: h1 is a class selector. (a) False (b) True
23. 23.True or false: img is a class selector. (a) False (b) True
24. 24.🎯 Which CSS selector matches this element?
    <span class="star" id="main">Hello</span> (a) #star (b) #logo (c) span (d) p
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) #main (b) .menu (c) #menu (d) .intro
26. 26.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
27. 27.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <h2 class="red"> (c) <h1> (d) <p class="red">
28. 28.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span id="red"> (c) <span class="red"> (d) <p class="star">
29. 29.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) #big (b) #logo (c) .red (d) #end
31. 31.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) #logo (b) #star (c) h1 (d) #end
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) h2 (b) #logo (c) .note (d) .big
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) #logo (b) .main (c) #main (d) li
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) h1 (b) h2 (c) #big (d) .top
35. 35.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <span id="end"> (c) <li> (d) <h2 class="big">
36. 36.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) #hero (c) .red (d) .hero
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) #big (b) .red (c) .big (d) .logo
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="big" id="main">Hello</h2> (a) .red (b) .big (c) .main (d) li
39. 39.🎯 Which CSS selector matches this element?
    <li class="menu" id="intro">Hello</li> (a) .intro (b) #main (c) #menu (d) li
40. 40.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector

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