CSS Worksheet: Selectors Class and Id

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

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