CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 893 · 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 .box style? (a) <span class="menu"> (b) <div class="star"> (c) <div class="box"> (d) <div id="box">
2. 2.🎯 Can many elements share the same class? (a) Yes (b) No
3. 3.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="note"> (c) <p class="note"> (d) <li id="top">
4. 4.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <li class="star"> (c) <div class="note"> (d) <li class="menu">
5. 5.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span class="note"> (c) <span id="note"> (d) <p class="red">
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="intro">Hello</h1> (a) .menu (b) #menu (c) #main (d) .note
7. 7.🎯 Which CSS selector matches this element?
   <span class="note" id="intro">Hello</span> (a) #main (b) .intro (c) .note (d) .big
8. 8.🎯 Which element does the selector li style? (a) <span class="note"> (b) <li class="note"> (c) <p id="main"> (d) <div>
9. 9.🎯 Which CSS selector matches this element?
   <h2 class="note" id="top">Hello</h2> (a) #note (b) .top (c) #top (d) .big
10. 10.🎯 Which element does the selector #main style? (a) <span class="menu"> (b) <div id="main"> (c) <div class="main"> (d) <div id="logo">
11. 11.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) #menu (b) li (c) .end (d) #hero
12. 12.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
13. 13.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) li (b) .hero (c) .note (d) #top
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="box" id="intro">Hello</h1> (a) h1 (b) #box (c) h2 (d) .intro
16. 16.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
17. 17.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
18. 18.True or false: h1 is an element selector. (a) False (b) True
19. 19.True or false: .star is an element selector. (a) False (b) True
20. 20.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
21. 21.🎯 Which element does the selector .big style? (a) <h2 class="red"> (b) <h2 id="big"> (c) <li class="box"> (d) <h2 class="big">
22. 22.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) #end (b) p (c) #hero (d) .big
23. 23.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <p> (c) <h1 class="box"> (d) <span class="box">
24. 24.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
25. 25.🎯 Which element does the selector p style? (a) <h2 class="red"> (b) <h1> (c) <li id="main"> (d) <p class="red">
26. 26.🎯 Which element does the selector #intro style? (a) <h2 class="star"> (b) <h1 id="intro"> (c) <h1 id="main"> (d) <h1 class="intro">
27. 27.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
28. 28.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) .note (b) #menu (c) li (d) div
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) h2 (b) li (c) #top (d) .big
30. 30.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
31. 31.True or false: #main is a class selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <span class="menu" id="hero">Hello</span> (a) .note (b) .menu (c) p (d) #top
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) .end (b) #big (c) #end (d) li
34. 34.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <p class="star"> (c) <span id="main"> (d) <span class="intro">
35. 35.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
36. 36.True or false: #logo is a class selector. (a) False (b) True
37. 37.🎯 Which element does the selector #logo style? (a) <h1 class="big"> (b) <p id="end"> (c) <p id="logo"> (d) <p class="logo">
38. 38.True or false: .note is an id selector. (a) False (b) True
39. 39.🎯 Which element does the selector .menu style? (a) <li class="big"> (b) <h2 class="note"> (c) <h2 class="menu"> (d) <h2 id="menu">
40. 40.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) h1 (b) #intro (c) p (d) #red

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