CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 982 · 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 sign starts an id selector? (a) . (b) # (c) @ (d) &
2. 2.True or false: img is an element selector. (a) False (b) True
3. 3.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="note"> (c) <li id="hero"> (d) <p class="note">
4. 4.True or false: #hero is a class selector. (a) True (b) False
5. 5.🎯 Can many elements share the same class? (a) Yes (b) No
6. 6.🎯 Which CSS selector matches this element?
   <p class="big" id="hero">Hello</p> (a) p (b) h1 (c) .hero (d) .red
7. 7.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
8. 8.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
9. 9.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
10. 10.🎯 Which element does the selector .red style? (a) <div class="star"> (b) <li class="red"> (c) <li id="red"> (d) <li class="box">
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) .box (b) .logo (c) .star (d) #end
12. 12.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) div (b) #main (c) #menu (d) .note
13. 13.True or false: img is an id selector. (a) True (b) False
14. 14.True or false: li is an element selector. (a) True (b) False
15. 15.🎯 Which element does the selector .red style? (a) <h2 id="red"> (b) <li class="star"> (c) <h2 class="red"> (d) <h2 class="box">
16. 16.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <span id="logo"> (c) <h2 class="note"> (d) <li>
17. 17.🎯 Which element does the selector .star style? (a) <h1 class="note"> (b) <p class="star"> (c) <p class="menu"> (d) <p id="star">
18. 18.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) h2 (b) .box (c) .red (d) .intro
20. 20.🎯 Which element does the selector .box style? (a) <span class="star"> (b) <p class="menu"> (c) <span id="box"> (d) <span class="box">
21. 21.True or false: #hero is an element selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) .note (b) .intro (c) .big (d) #note
23. 23.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) .note (b) div (c) .end (d) .menu
26. 26.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) div (b) #top (c) #intro (d) .top
27. 27.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) .intro (b) p (c) .note (d) span
28. 28.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 id="big"> (c) <h1 class="red"> (d) <h1 class="big">
29. 29.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <h1 id="intro"> (c) <span> (d) <div class="menu">
30. 30.🎯 Which element does the selector #hero style? (a) <h1 id="hero"> (b) <h1 id="top"> (c) <h1 class="hero"> (d) <h2 class="star">
31. 31.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 id="menu"> (c) <h1 class="menu"> (d) <h1 class="note">
33. 33.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
34. 34.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <div class="star"> (c) <div id="star"> (d) <span class="note">
35. 35.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
36. 36.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <div id="hero"> (c) <h2> (d) <h1 class="note">
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) .big (b) .red (c) #big (d) li
38. 38.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) #intro (b) p (c) .intro (d) .box
39. 39.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <li class="red"> (c) <h1 class="red"> (d) <h2>
40. 40.True or false: .big is a class selector. (a) True (b) False

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