CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 739 · 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: #top is an element selector. (a) True (b) False
2. 2.🎯 Which element does the selector li style? (a) <li class="big"> (b) <span class="big"> (c) <p id="top"> (d) <div>
3. 3.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
4. 4.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
5. 5.🎯 Which CSS selector matches this element?
   <p class="star" id="main">Hello</p> (a) #logo (b) .main (c) h1 (d) p
6. 6.🎯 Which element does the selector #logo style? (a) <li class="logo"> (b) <div class="note"> (c) <li id="logo"> (d) <li id="end">
7. 7.🎯 Which element does the selector #logo style? (a) <h1 id="logo"> (b) <h1 class="logo"> (c) <h2 class="red"> (d) <h1 id="end">
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="note" id="end">Hello</h2> (a) #hero (b) #end (c) #note (d) li
9. 9.🎯 Which element does the selector .box style? (a) <p class="box"> (b) <p id="box"> (c) <h1 class="menu"> (d) <p class="star">
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) .red (b) #hero (c) .box (d) .end
12. 12.🎯 Which element does the selector .note style? (a) <p class="red"> (b) <span id="note"> (c) <span class="big"> (d) <span class="note">
13. 13.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) #note (b) #intro (c) .note (d) .top
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="big" id="main">Hello</h2> (a) li (b) .main (c) #big (d) #main
16. 16.True or false: .note is a class selector. (a) False (b) True
17. 17.🎯 Which sign starts an id selector? (a) & (b) # (c) . (d) @
18. 18.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) div (b) #note (c) #logo (d) li
19. 19.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
20. 20.True or false: body is an element selector. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) h1 (b) #big (c) #hero (d) .end
22. 22.🎯 Which element does the selector h1 style? (a) <h1 class="note"> (b) <div id="hero"> (c) <li class="note"> (d) <h2>
23. 23.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
24. 24.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="red" id="logo">Hello</h2> (a) .red (b) #end (c) li (d) .box
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) h2 (b) #end (c) .logo (d) h1
28. 28.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .top (b) #menu (c) .note (d) p
29. 29.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .box (b) h1 (c) p (d) .intro
31. 31.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) h2 (b) #end (c) .note (d) #menu
33. 33.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) h2 (b) #red (c) .intro (d) #intro
35. 35.🎯 Which element does the selector #intro style? (a) <div id="intro"> (b) <span class="menu"> (c) <div class="intro"> (d) <div id="main">
36. 36.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) #star (b) #end (c) .end (d) span
37. 37.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <h1 class="big"> (c) <p class="hero"> (d) <p id="hero">
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #note (b) .top (c) #intro (d) p
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) #top (b) li (c) div (d) #star
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h1 (b) h2 (c) #main (d) #note

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