CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 763 · 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 a class selector? (a) @ (b) . (c) # (d) &
2. 2.True or false: #main is an element selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <p class="big" id="intro">Hello</p> (a) .red (b) .intro (c) p (d) #big
4. 4.🎯 Which element does the selector li style? (a) <div> (b) <span class="star"> (c) <p id="hero"> (d) <li class="star">
5. 5.True or false: #end is a class selector. (a) True (b) False
6. 6.True or false: .big is a class selector. (a) True (b) False
7. 7.🎯 Which element does the selector #logo style? (a) <p id="end"> (b) <p class="logo"> (c) <h1 class="menu"> (d) <p id="logo">
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="note" id="end">Hello</h1> (a) .note (b) #hero (c) .end (d) .big
9. 9.🎯 Which element does the selector .big style? (a) <p class="red"> (b) <p id="big"> (c) <h1 class="box"> (d) <p class="big">
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1> (a) #star (b) #logo (c) .main (d) h1
11. 11.True or false: .note is a class selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) .end (b) #red (c) .box (d) .red
13. 13.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) div (b) .big (c) #main (d) span
14. 14.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) #star (b) .menu (c) p (d) .star
15. 15.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="big"> (c) <li id="intro"> (d) <p class="big">
17. 17.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
18. 18.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) .end (b) #end (c) h2 (d) #box
19. 19.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
20. 20.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h1 id="top"> (c) <h2 class="menu"> (d) <h1 id="hero">
21. 21.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <span class="star"> (c) <div class="red"> (d) <div class="box">
22. 22.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .top (b) p (c) .big (d) .red
23. 23.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
24. 24.🎯 Can many elements share the same class? (a) Yes (b) No
25. 25.True or false: .note is an element selector. (a) False (b) True
26. 26.True or false: .card is an id selector. (a) True (b) False
27. 27.🎯 Which element does the selector .box style? (a) <span class="box"> (b) <span class="star"> (c) <span id="box"> (d) <p class="menu">
28. 28.🎯 Which element does the selector .big style? (a) <div id="big"> (b) <span class="box"> (c) <div class="red"> (d) <div class="big">
29. 29.🎯 Which element does the selector #end style? (a) <div id="hero"> (b) <span class="red"> (c) <div class="end"> (d) <div id="end">
30. 30.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
31. 31.🎯 Which element does the selector #hero style? (a) <h1 class="note"> (b) <p class="hero"> (c) <p id="hero"> (d) <p id="top">
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #hero (b) .end (c) h2 (d) #big
33. 33.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
34. 34.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) #intro (b) #big (c) .red (d) .intro
35. 35.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
36. 36.🎯 Which element does the selector #main style? (a) <h1 class="star"> (b) <p id="main"> (c) <p id="logo"> (d) <p class="main">
37. 37.True or false: #end is an id selector. (a) False (b) True
38. 38.True or false: #logo is a class selector. (a) False (b) True
39. 39.True or false: #top is an id selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) div (b) .menu (c) #main (d) #intro

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