CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 964 · 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?
   <p class="big" id="main">Hello</p> (a) .red (b) #big (c) .big (d) .main
2. 2.True or false: h1 is an id selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="star" id="intro">Hello</h1> (a) #star (b) .menu (c) #main (d) h1
4. 4.🎯 Which element does the selector #hero style? (a) <span class="box"> (b) <div id="top"> (c) <div class="hero"> (d) <div id="hero">
5. 5.🎯 Which sign starts a class selector? (a) & (b) @ (c) # (d) .
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="big" id="top">Hello</h1> (a) #intro (b) #big (c) .red (d) h1
7. 7.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <div id="top"> (d) <h1 class="note">
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="logo">Hello</h2> (a) #logo (b) li (c) .logo (d) .note
9. 9.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
10. 10.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Which CSS selector matches this element?
    <div class="menu" id="end">Hello</div> (a) #end (b) .end (c) .note (d) #hero
12. 12.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <div class="box"> (c) <li id="end"> (d) <li class="end">
13. 13.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .top (b) .red (c) #top (d) #big
14. 14.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
15. 15.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <li class="box"> (c) <li class="red"> (d) <div class="star">
16. 16.🎯 Which element does the selector p style? (a) <h1> (b) <p class="note"> (c) <li id="intro"> (d) <h2 class="note">
17. 17.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <h1 id="main"> (c) <span> (d) <div class="menu">
18. 18.🎯 Which element does the selector div style? (a) <span> (b) <div class="note"> (c) <h1 id="end"> (d) <p class="note">
19. 19.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
20. 20.🎯 Which element does the selector #main style? (a) <p class="note"> (b) <span class="main"> (c) <span id="main"> (d) <span id="logo">
21. 21.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <p class="hero"> (c) <p id="hero"> (d) <h1 class="menu">
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) h2 (b) .top (c) .note (d) #intro
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) .box (b) #end (c) .star (d) li
24. 24.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) div (b) #end (c) #logo (d) .star
25. 25.🎯 Which element does the selector li style? (a) <li class="note"> (b) <span class="note"> (c) <p id="logo"> (d) <div>
26. 26.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) #star (b) .menu (c) div (d) .star
27. 27.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) #intro (b) #top (c) #big (d) div
28. 28.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .intro (b) p (c) .star (d) #main
29. 29.🎯 Can many elements share the same class? (a) No (b) Yes
30. 30.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
31. 31.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="star"> (c) <span id="intro"> (d) <h2 class="star">
32. 32.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
33. 33.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
34. 34.True or false: .star is a class selector. (a) True (b) False
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) #note (b) #end (c) .big (d) .end
36. 36.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) div (b) .note (c) #intro (d) .menu
37. 37.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
38. 38.True or false: .menu is an id selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #logo (b) .logo (c) h1 (d) #end
40. 40.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector

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