CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 744 · 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 CSS selector matches this element?
   <h1 class="red" id="logo">Hello</h1> (a) h2 (b) .logo (c) h1 (d) .box
2. 2.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
3. 3.True or false: #top is an id selector. (a) False (b) True
4. 4.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
5. 5.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h1> (c) <li id="hero"> (d) <h2 class="menu">
6. 6.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <h1> (c) <li id="logo"> (d) <p class="note">
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="big" id="top">Hello</h2> (a) .top (b) .big (c) .red (d) #big
8. 8.True or false: .note is an id selector. (a) False (b) True
9. 9.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <p class="hero"> (c) <p id="hero"> (d) <h1 class="big">
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.🎯 Which sign starts an id selector? (a) @ (b) . (c) # (d) &
12. 12.True or false: .menu is a class selector. (a) False (b) True
13. 13.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) #menu (b) .top (c) .menu (d) li
15. 15.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h1 id="top"> (c) <h2 class="big"> (d) <h1 id="hero">
16. 16.🎯 Which element does the selector .big style? (a) <p class="box"> (b) <span id="big"> (c) <span class="red"> (d) <span class="big">
17. 17.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="box" id="intro">Hello</h2> (a) #box (b) li (c) .box (d) .intro
19. 19.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) .star (b) p (c) #main (d) #box
20. 20.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .box (b) #hero (c) h1 (d) .end
21. 21.True or false: h1 is an id selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) div (b) #top (c) #intro (d) #menu
23. 23.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
25. 25.True or false: body is an id selector. (a) True (b) False
26. 26.🎯 Which element does the selector .big style? (a) <p class="big"> (b) <h1 class="box"> (c) <p id="big"> (d) <p class="red">
27. 27.🎯 Which element does the selector .red style? (a) <li class="box"> (b) <li id="red"> (c) <li class="red"> (d) <div class="star">
28. 28.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .hero (b) #box (c) #top (d) .box
29. 29.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
30. 30.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 Which element does the selector #hero style? (a) <li class="hero"> (b) <li id="hero"> (c) <li id="top"> (d) <div class="note">
32. 32.🎯 Which element does the selector p style? (a) <h1> (b) <p class="red"> (c) <li id="intro"> (d) <h2 class="red">
33. 33.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) span (b) #logo (c) #main (d) #box
34. 34.🎯 Which element does the selector #intro style? (a) <p class="big"> (b) <span id="main"> (c) <span id="intro"> (d) <span class="intro">
35. 35.True or false: img is a class selector. (a) False (b) True
36. 36.🎯 Which element does the selector div style? (a) <p class="box"> (b) <div class="box"> (c) <h1 id="end"> (d) <span>
37. 37.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <div class="logo"> (c) <div id="logo"> (d) <span class="big">
38. 38.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
39. 39.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) h1 (b) .menu (c) .note (d) .logo
40. 40.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="box"> (c) <h2 id="end"> (d) <span class="box">

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