CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 876 · 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?
   <h2 class="star" id="logo">Hello</h2> (a) #logo (b) #star (c) .logo (d) .menu
2. 2.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
4. 4.🎯 Which sign starts an id selector? (a) & (b) # (c) . (d) @
5. 5.🎯 Which element does the selector #main style? (a) <li id="logo"> (b) <div class="star"> (c) <li id="main"> (d) <li class="main">
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="note" id="top">Hello</h1> (a) #top (b) #note (c) .top (d) .big
7. 7.🎯 Which CSS selector matches this element?
   <p class="note" id="main">Hello</p> (a) #main (b) .big (c) #note (d) #logo
8. 8.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
9. 9.🎯 Which element does the selector p style? (a) <li id="top"> (b) <p class="red"> (c) <h2 class="red"> (d) <h1>
10. 10.🎯 Which element does the selector div style? (a) <span> (b) <p class="star"> (c) <h1 id="top"> (d) <div class="star">
11. 11.True or false: p is an element selector. (a) True (b) False
12. 12.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
13. 13.True or false: #main is an id selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p> (a) h1 (b) #main (c) #logo (d) #star
15. 15.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) #red (b) .red (c) .box (d) #hero
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) #note (b) .intro (c) #main (d) h2
17. 17.True or false: #top is an id selector. (a) True (b) False
18. 18.🎯 Which sign starts a class selector? (a) . (b) @ (c) # (d) &
19. 19.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
20. 20.🎯 Which element does the selector p style? (a) <p class="note"> (b) <li id="intro"> (c) <h2 class="note"> (d) <h1>
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) .main (b) #logo (c) #main (d) .note
22. 22.True or false: li is an element selector. (a) True (b) False
23. 23.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="end"> (c) <p class="red"> (d) <div class="red">
24. 24.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #top (b) .top (c) p (d) #red
26. 26.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
27. 27.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
28. 28.🎯 Which element does the selector .note style? (a) <p class="note"> (b) <p class="big"> (c) <h1 class="red"> (d) <p id="note">
29. 29.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li id="box"> (c) <li class="star"> (d) <li class="box">
30. 30.True or false: .menu is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li class="end"> (c) <div class="menu"> (d) <li id="end">
32. 32.True or false: #main is a class selector. (a) False (b) True
33. 33.True or false: .card is a class selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) h1 (b) #red (c) p (d) .hero
35. 35.True or false: .card is an element selector. (a) False (b) True
36. 36.🎯 Which element does the selector #logo style? (a) <h1 id="end"> (b) <h2 class="note"> (c) <h1 class="logo"> (d) <h1 id="logo">
37. 37.True or false: img is an element selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) div (b) li (c) .star (d) #box
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) .star (b) div (c) .menu (d) #end
40. 40.🎯 Which element does the selector h2 style? (a) <h2 class="menu"> (b) <span id="hero"> (c) <div class="menu"> (d) <li>

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