CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 312 · 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 .big? (a) an id selector (b) an element selector (c) a class selector
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="note" id="main">Hello</h1> (a) #main (b) .main (c) .big (d) #logo
3. 3.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
4. 4.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <h1> (c) <li id="main"> (d) <p class="big">
5. 5.True or false: .star is a class selector. (a) False (b) True
6. 6.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
7. 7.🎯 Which element does the selector li style? (a) <span class="note"> (b) <li class="note"> (c) <div> (d) <p id="logo">
8. 8.🎯 Which element does the selector p style? (a) <li id="end"> (b) <h1> (c) <p class="menu"> (d) <h2 class="menu">
9. 9.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
11. 11.True or false: .star is an id selector. (a) True (b) False
12. 12.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
13. 13.🎯 Can many elements share the same class? (a) No (b) Yes
14. 14.🎯 Which element does the selector div style? (a) <div class="box"> (b) <p class="box"> (c) <h1 id="top"> (d) <span>
15. 15.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
16. 16.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
17. 17.True or false: .menu is an id selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) .menu (b) #logo (c) #star (d) .logo
19. 19.True or false: #end is an id selector. (a) True (b) False
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .note (b) .big (c) h2 (d) #note
21. 21.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) .logo (b) #end (c) span (d) #logo
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) .intro (b) .note (c) #main (d) h2
23. 23.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <h2 id="logo"> (d) <span class="big">
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) #top (b) #hero (c) .note (d) .hero
25. 25.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) #big (b) .red (c) #logo (d) .big
26. 26.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) .end (b) span (c) #big (d) div
27. 27.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="top"> (c) <div class="note"> (d) <h2 class="note">
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) .menu (b) h1 (c) #star (d) h2
29. 29.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) p (b) #main (c) .big (d) #big
30. 30.🎯 Which element does the selector .note style? (a) <div id="note"> (b) <div class="note"> (c) <div class="big"> (d) <span class="red">
31. 31.True or false: .note is a class selector. (a) False (b) True
32. 32.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 id="menu"> (c) <h1 class="menu"> (d) <h1 class="note">
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1> (a) #red (b) .top (c) #top (d) #intro
34. 34.True or false: .note is an element selector. (a) True (b) False
35. 35.True or false: p is an id selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) .intro (b) .box (c) .star (d) #box
37. 37.🎯 Which element does the selector .menu style? (a) <li id="menu"> (b) <li class="menu"> (c) <div class="big"> (d) <li class="note">
38. 38.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <h2 class="big"> (c) <li> (d) <span id="intro">
39. 39.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
40. 40.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <span class="box"> (c) <div class="big"> (d) <div id="big">

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