CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 955 · 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?
   <span class="star" id="main">Hello</span> (a) .menu (b) #logo (c) #star (d) span
2. 2.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="big" id="hero">Hello</h1> (a) h1 (b) #top (c) .red (d) h2
4. 4.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="red" id="top">Hello</h1> (a) .top (b) h1 (c) #intro (d) .box
9. 9.🎯 Which CSS selector matches this element?
   <div class="menu" id="end">Hello</div> (a) .menu (b) .note (c) span (d) .end
10. 10.🎯 Which element does the selector li style? (a) <div> (b) <span class="star"> (c) <li class="star"> (d) <p id="end">
11. 11.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
12. 12.True or false: h1 is an id selector. (a) False (b) True
13. 13.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) #top (b) .hero (c) #star (d) p
14. 14.🎯 Which element does the selector #main style? (a) <h1 class="main"> (b) <h1 id="logo"> (c) <h2 class="box"> (d) <h1 id="main">
15. 15.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="top"> (c) <h1 id="intro"> (d) <h2 class="big">
16. 16.🎯 Which element does the selector p style? (a) <h1> (b) <p class="star"> (c) <li id="main"> (d) <h2 class="star">
17. 17.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) #box (b) h1 (c) p (d) #intro
18. 18.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #big (b) div (c) #end (d) .end
19. 19.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
20. 20.🎯 Which CSS selector matches this element?
    <p class="menu" id="end">Hello</p> (a) #hero (b) .note (c) p (d) h1
21. 21.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .menu (b) .intro (c) span (d) #star
22. 22.True or false: .card is an element selector. (a) True (b) False
23. 23.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) div (b) #intro (c) li (d) .top
24. 24.🎯 Which element does the selector #main style? (a) <h2 class="main"> (b) <li class="red"> (c) <h2 id="main"> (d) <h2 id="logo">
25. 25.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) .logo (b) #note (c) h1 (d) .note
26. 26.🎯 Which element does the selector .box style? (a) <div id="box"> (b) <span class="menu"> (c) <div class="box"> (d) <div class="star">
27. 27.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which CSS selector matches this element?
    <div class="box" id="hero">Hello</div> (a) span (b) .hero (c) .box (d) .star
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) #menu (b) .end (c) #hero (d) h2
30. 30.True or false: img is a class selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) #main (b) .red (c) span (d) div
32. 32.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
33. 33.🎯 Which element does the selector span style? (a) <h2 id="main"> (b) <h1 class="big"> (c) <span class="big"> (d) <p>
34. 34.True or false: #hero is an element selector. (a) True (b) False
35. 35.🎯 Which element does the selector #main style? (a) <div class="star"> (b) <li id="main"> (c) <li class="main"> (d) <li id="logo">
36. 36.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
37. 37.True or false: li is an element selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) #red (b) span (c) .top (d) #top
39. 39.🎯 Which element does the selector div style? (a) <p class="note"> (b) <h1 id="intro"> (c) <div class="note"> (d) <span>
40. 40.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <h2 class="menu"> (c) <div class="menu"> (d) <li>

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