CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 662 · 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 #main style? (a) <li class="note"> (b) <h2 id="main"> (c) <h2 id="logo"> (d) <h2 class="main">
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="red" id="main">Hello</h1> (a) .main (b) #red (c) h1 (d) h2
3. 3.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
4. 4.🎯 Which CSS selector matches this element?
   <div class="big" id="hero">Hello</div> (a) .hero (b) #big (c) .red (d) .big
5. 5.🎯 Which element does the selector .star style? (a) <h2 class="star"> (b) <h2 class="menu"> (c) <li class="note"> (d) <h2 id="star">
6. 6.True or false: #end is a class selector. (a) True (b) False
7. 7.🎯 Which element does the selector .box style? (a) <div class="box"> (b) <div id="box"> (c) <span class="menu"> (d) <div class="star">
8. 8.🎯 Which CSS selector matches this element?
   <div class="note" id="main">Hello</div> (a) #note (b) .main (c) span (d) .note
9. 9.🎯 Which CSS selector matches this element?
   <p class="big" id="hero">Hello</p> (a) p (b) .red (c) h1 (d) .hero
10. 10.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) #big (b) div (c) #top (d) span
11. 11.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
12. 12.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
13. 13.True or false: .card is a class selector. (a) True (b) False
14. 14.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
15. 15.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) .menu (b) div (c) li (d) #star
17. 17.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
18. 18.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
19. 19.🎯 Which element does the selector #top style? (a) <span class="box"> (b) <div id="top"> (c) <div class="top"> (d) <div id="intro">
20. 20.True or false: #top is an id selector. (a) True (b) False
21. 21.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
22. 22.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 class="menu"> (c) <h1 id="menu"> (d) <h2 class="big">
23. 23.True or false: .menu is an element selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="box" id="end">Hello</h2> (a) #end (b) #box (c) #hero (d) .end
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) #hero (b) .end (c) li (d) #end
26. 26.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) #hero (b) #box (c) li (d) .star
27. 27.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <p class="big"> (d) <h2 class="big">
28. 28.🎯 Which element does the selector #end style? (a) <h2 class="menu"> (b) <h1 class="end"> (c) <h1 id="end"> (d) <h1 id="hero">
29. 29.🎯 Which CSS selector matches this element?
    <p class="menu" id="end">Hello</p> (a) #end (b) #hero (c) .end (d) h1
30. 30.True or false: #main is a class selector. (a) True (b) False
31. 31.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p id="box"> (c) <p class="box"> (d) <p class="star">
34. 34.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) #hero (b) .red (c) .end (d) div
35. 35.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
36. 36.True or false: .star is a class selector. (a) True (b) False
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) #box (b) .top (c) #intro (d) h2
38. 38.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="note"> (c) <h2 class="big"> (d) <li class="red">
39. 39.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) #note (b) p (c) h1 (d) #main
40. 40.🎯 Which element does the selector #logo style? (a) <h1 id="end"> (b) <h1 id="logo"> (c) <h1 class="logo"> (d) <h2 class="red">

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