CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 485 · 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) <div class="end"> (b) <div id="hero"> (c) <div id="end"> (d) <span class="box">
2. 2.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
3. 3.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
4. 4.🎯 Which element does the selector span style? (a) <span class="note"> (b) <p> (c) <h1 class="note"> (d) <h2 id="logo">
5. 5.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
6. 6.True or false: img is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <li class="note" id="intro">Hello</li> (a) #main (b) #note (c) #intro (d) .intro
8. 8.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="red"> (c) <li class="red"> (d) <div id="intro">
9. 9.🎯 Which CSS selector matches this element?
   <li class="big" id="logo">Hello</li> (a) .logo (b) div (c) li (d) #end
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) #star (b) .hero (c) h2 (d) .menu
11. 11.True or false: .card is an element selector. (a) False (b) True
12. 12.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
13. 13.🎯 Can many elements share the same class? (a) No (b) Yes
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) li (b) #end (c) .logo (d) #logo
15. 15.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 5 (d) 1
16. 16.🎯 Which element does the selector .menu style? (a) <h2 class="menu"> (b) <h2 class="note"> (c) <li class="big"> (d) <h2 id="menu">
17. 17.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
18. 18.True or false: .note is a class selector. (a) True (b) False
19. 19.True or false: .note is an id selector. (a) True (b) False
20. 20.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
21. 21.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="logo"> (c) <li id="main"> (d) <div class="red">
22. 22.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="red"> (d) <div class="big">
23. 23.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <h2> (c) <div id="top"> (d) <h1 class="box">
24. 24.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) .end (b) .red (c) .box (d) div
25. 25.True or false: .card is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) .box (b) #top (c) li (d) .top
27. 27.🎯 Which element does the selector #top style? (a) <li class="star"> (b) <h2 id="intro"> (c) <h2 class="top"> (d) <h2 id="top">
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) #hero (b) .end (c) .big (d) h2
29. 29.🎯 Which element does the selector #end style? (a) <h1 class="star"> (b) <p id="end"> (c) <p class="end"> (d) <p id="hero">
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="logo">Hello</h1> (a) .logo (b) h2 (c) #logo (d) #menu
31. 31.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) .hero (b) h1 (c) #big (d) p
32. 32.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) #intro (b) #star (c) div (d) li
33. 33.🎯 Which element does the selector h2 style? (a) <span id="hero"> (b) <h2 class="red"> (c) <li> (d) <div class="red">
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) h1 (b) h2 (c) #menu (d) .intro
35. 35.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h1> (c) <li id="main"> (d) <h2 class="big">
36. 36.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) .big (b) div (c) li (d) #note
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="box" id="intro">Hello</h1> (a) .intro (b) #box (c) h2 (d) #intro
39. 39.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) #big (b) .intro (c) .red (d) div
40. 40.True or false: li is an element selector. (a) True (b) False

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