CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 260 · 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.True or false: .note is an element selector. (a) True (b) False
2. 2.🎯 Which element does the selector div style? (a) <p class="red"> (b) <span> (c) <div class="red"> (d) <h1 id="logo">
3. 3.🎯 Which CSS selector matches this element?
   <span class="star" id="intro">Hello</span> (a) p (b) span (c) #main (d) #star
4. 4.🎯 Which CSS selector matches this element?
   <p class="star" id="main">Hello</p> (a) p (b) h1 (c) .menu (d) #star
5. 5.True or false: #top is an id selector. (a) False (b) True
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="star" id="end">Hello</h1> (a) h2 (b) .star (c) #hero (d) .menu
7. 7.🎯 Which CSS selector matches this element?
   <div class="note" id="end">Hello</div> (a) .end (b) .big (c) #note (d) .note
8. 8.🎯 Which CSS selector matches this element?
   <span class="big" id="main">Hello</span> (a) #logo (b) span (c) .main (d) #big
9. 9.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
10. 10.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
11. 11.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span id="intro"> (c) <span class="top"> (d) <p class="star">
12. 12.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Which element does the selector .big style? (a) <p id="big"> (b) <h1 class="box"> (c) <p class="red"> (d) <p class="big">
14. 14.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
15. 15.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="big"> (c) <h2 class="big"> (d) <span id="intro">
16. 16.True or false: .menu is a class selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) p (b) .star (c) #main (d) h1
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) .logo (b) #logo (c) #star (d) #end
19. 19.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
20. 20.True or false: .card is a class selector. (a) True (b) False
21. 21.🎯 Which element does the selector .menu style? (a) <h1 class="menu"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="note">
22. 22.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) .star (b) #main (c) #box (d) #intro
23. 23.🎯 Which element does the selector #hero style? (a) <h2 class="hero"> (b) <h2 id="hero"> (c) <li class="red"> (d) <h2 id="top">
24. 24.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
25. 25.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) h1 (b) #big (c) #end (d) .red
26. 26.🎯 Which element does the selector .red style? (a) <p id="red"> (b) <h1 class="star"> (c) <p class="box"> (d) <p class="red">
27. 27.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) #star (b) #end (c) h2 (d) .menu
30. 30.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) #intro (b) div (c) li (d) .note
31. 31.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #intro (b) .big (c) #note (d) p
33. 33.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <h2 id="end"> (c) <li class="note"> (d) <h2 id="logo">
34. 34.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which CSS selector matches this element?
    <li class="note" id="end">Hello</li> (a) .big (b) .end (c) li (d) #hero
36. 36.True or false: .card is an id selector. (a) False (b) True
37. 37.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <p class="box"> (c) <span class="red"> (d) <span class="big">
38. 38.🎯 Which element does the selector #hero style? (a) <li class="hero"> (b) <li id="top"> (c) <div class="red"> (d) <li id="hero">
39. 39.True or false: h1 is a class selector. (a) False (b) True
40. 40.True or false: p is an element selector. (a) False (b) True

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