CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 357 · 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 #hero style? (a) <h1 class="note"> (b) <p id="top"> (c) <p id="hero"> (d) <p class="hero">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="end">Hello</h2> (a) #menu (b) h2 (c) .note (d) #hero
3. 3.🎯 Which CSS selector matches this element?
   <div class="big" id="intro">Hello</div> (a) .intro (b) #main (c) .red (d) div
4. 4.🎯 Which CSS selector matches this element?
   <div class="red" id="intro">Hello</div> (a) #red (b) span (c) .intro (d) div
5. 5.🎯 Which element does the selector li style? (a) <div> (b) <li class="big"> (c) <span class="big"> (d) <p id="end">
6. 6.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
7. 7.🎯 Which element does the selector #end style? (a) <span class="end"> (b) <p class="big"> (c) <span id="end"> (d) <span id="hero">
8. 8.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
9. 9.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.True or false: .star is a class selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) #top (b) h2 (c) .hero (d) .star
13. 13.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) .top (b) #intro (c) .big (d) #big
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="star" id="hero">Hello</h1> (a) h2 (b) #top (c) h1 (d) #star
15. 15.🎯 Which element does the selector #top style? (a) <h2 id="intro"> (b) <h2 id="top"> (c) <h2 class="top"> (d) <li class="box">
16. 16.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) #hero (b) div (c) #star (d) span
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) .intro (b) #intro (c) #main (d) h2
18. 18.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) #red (b) #logo (c) h2 (d) .red
20. 20.True or false: .menu is a class selector. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) #hero (b) #note (c) p (d) .end
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="red" id="hero">Hello</h2> (a) .box (b) h2 (c) li (d) #top
23. 23.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
24. 24.True or false: .menu is an id selector. (a) True (b) False
25. 25.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <h1 class="big"> (c) <p> (d) <span class="big">
26. 26.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) #star (b) .menu (c) .star (d) h1
27. 27.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
28. 28.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) #red (b) #main (c) .red (d) .intro
30. 30.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
31. 31.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h1> (c) <li id="hero"> (d) <h2 class="menu">
32. 32.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) div (b) #menu (c) .intro (d) .note
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) #star (b) #logo (c) .logo (d) .menu
34. 34.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) #hero (b) #box (c) h1 (d) .box
35. 35.True or false: #hero is an id selector. (a) False (b) True
36. 36.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) #star (b) #top (c) #hero (d) .hero
38. 38.🎯 Which element does the selector p style? (a) <h1> (b) <p class="note"> (c) <li id="end"> (d) <h2 class="note">
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) #hero (b) #star (c) li (d) .menu
40. 40.🎯 Which element does the selector li style? (a) <li class="menu"> (b) <div> (c) <p id="main"> (d) <span class="menu">

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