CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 371 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
3. 3.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <h2 class="menu"> (c) <li> (d) <span id="hero">
4. 4.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
5. 5.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="box" id="main">Hello</h1> (a) .star (b) #logo (c) h2 (d) #main
7. 7.🎯 Which CSS selector matches this element?
   <div class="big" id="main">Hello</div> (a) #logo (b) .main (c) #big (d) .big
8. 8.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
9. 9.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
10. 10.True or false: .menu is an id selector. (a) True (b) False
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) .menu (b) #intro (c) h2 (d) h1
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) h2 (b) .big (c) #big (d) .red
13. 13.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) #box (b) .intro (c) #intro (d) h1
14. 14.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <p class="red"> (c) <span id="intro"> (d) <span class="intro">
16. 16.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
17. 17.🎯 Which element does the selector .box style? (a) <h1 id="box"> (b) <h1 class="star"> (c) <h2 class="menu"> (d) <h1 class="box">
18. 18.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) #hero (b) #end (c) .end (d) .menu
19. 19.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="box"> (c) <h2 id="top"> (d) <span class="box">
20. 20.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
21. 21.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li class="star"> (c) <li class="box"> (d) <li id="box">
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) .star (b) #hero (c) #box (d) .hero
23. 23.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
24. 24.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) .star (b) li (c) #logo (d) div
25. 25.True or false: #logo is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p> (a) #star (b) .main (c) .menu (d) .star
27. 27.🎯 Which element does the selector p style? (a) <li id="end"> (b) <p class="menu"> (c) <h1> (d) <h2 class="menu">
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) #hero (b) h1 (c) .star (d) h2
29. 29.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
30. 30.True or false: #logo is a class selector. (a) True (b) False
31. 31.True or false: h1 is a class selector. (a) False (b) True
32. 32.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
33. 33.True or false: #end is an element selector. (a) False (b) True
34. 34.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .red (b) h2 (c) li (d) #big
36. 36.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) .hero (b) #top (c) span (d) #red
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) h2 (c) #top (d) .note
38. 38.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
39. 39.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p class="star"> (c) <p class="box"> (d) <p id="box">
40. 40.🎯 Which element does the selector p style? (a) <li id="end"> (b) <h2 class="note"> (c) <p class="note"> (d) <h1>

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