CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 822 · 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 #end style? (a) <span id="hero"> (b) <p class="menu"> (c) <span class="end"> (d) <span id="end">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="star" id="top">Hello</h2> (a) .menu (b) h2 (c) .top (d) #star
3. 3.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <span class="box"> (c) <div class="big"> (d) <div id="big">
4. 4.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
5. 5.True or false: .menu is an id selector. (a) False (b) True
6. 6.True or false: .menu is an element selector. (a) False (b) True
7. 7.🎯 Which CSS selector matches this element?
   <p class="red" id="hero">Hello</p> (a) .red (b) .box (c) #top (d) .hero
8. 8.🎯 Which CSS selector matches this element?
   <div class="star" id="top">Hello</div> (a) .menu (b) #intro (c) #star (d) .star
9. 9.True or false: .star is a class selector. (a) False (b) True
10. 10.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="box"> (c) <p class="box"> (d) <li id="logo">
11. 11.True or false: .big is an id selector. (a) True (b) False
12. 12.True or false: #top is an id selector. (a) True (b) False
13. 13.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) #red (b) #main (c) .intro (d) h2
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) .box (b) h1 (c) #hero (d) .end
16. 16.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
17. 17.🎯 Which CSS selector matches this element?
    <span class="star" id="main">Hello</span> (a) p (b) .main (c) #star (d) .star
18. 18.🎯 Which element does the selector .red style? (a) <p class="star"> (b) <span id="red"> (c) <span class="box"> (d) <span class="red">
19. 19.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
20. 20.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
21. 21.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
22. 22.True or false: .big is a class selector. (a) False (b) True
23. 23.True or false: .note is a class selector. (a) False (b) True
24. 24.🎯 Can many elements share the same class? (a) No (b) Yes
25. 25.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) #end (b) .end (c) #hero (d) p
26. 26.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
27. 27.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) #top (b) .top (c) #menu (d) div
28. 28.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li class="end"> (c) <div class="red"> (d) <li id="end">
29. 29.🎯 Which element does the selector span style? (a) <span class="star"> (b) <h1 class="star"> (c) <h2 id="hero"> (d) <p>
30. 30.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .red (b) span (c) p (d) #big
31. 31.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <span> (c) <p class="box"> (d) <div class="box">
33. 33.True or false: body is an element selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) .hero (b) #big (c) div (d) span
35. 35.True or false: #hero is an id selector. (a) False (b) True
36. 36.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
37. 37.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) p (b) .menu (c) #star (d) h1
38. 38.🎯 Which element does the selector #top style? (a) <h2 class="top"> (b) <h2 id="top"> (c) <h2 id="intro"> (d) <li class="note">
39. 39.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) .note (b) p (c) #menu (d) h1
40. 40.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="intro"> (c) <h1 id="top"> (d) <h2 class="menu">

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