CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 182 · 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 h2 style? (a) <span id="end"> (b) <div class="note"> (c) <li> (d) <h2 class="note">
2. 2.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="box" id="intro">Hello</h2> (a) li (b) .intro (c) h2 (d) #main
4. 4.🎯 Which element does the selector span style? (a) <span class="red"> (b) <h2 id="end"> (c) <h1 class="red"> (d) <p>
5. 5.True or false: #logo is an id selector. (a) True (b) False
6. 6.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <div class="main"> (c) <span class="menu"> (d) <div id="main">
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
8. 8.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
9. 9.🎯 Which element does the selector .big style? (a) <h1 class="red"> (b) <h1 class="big"> (c) <h1 id="big"> (d) <h2 class="box">
10. 10.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <div id="top"> (c) <span class="menu"> (d) <div id="intro">
11. 11.True or false: .menu is an element selector. (a) False (b) True
12. 12.True or false: #main is an id selector. (a) False (b) True
13. 13.🎯 Which element does the selector li style? (a) <p id="end"> (b) <span class="red"> (c) <li class="red"> (d) <div>
14. 14.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) p (b) #big (c) .big (d) .main
15. 15.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
16. 16.True or false: p is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) span (b) .top (c) p (d) #red
18. 18.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) span (b) .box (c) div (d) #end
20. 20.🎯 Which element does the selector div style? (a) <span> (b) <div class="box"> (c) <p class="box"> (d) <h1 id="top">
21. 21.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) #logo (b) .box (c) .main (d) div
22. 22.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) span (b) .note (c) .top (d) #top
23. 23.🎯 Which element does the selector span style? (a) <span class="box"> (b) <p> (c) <h1 class="box"> (d) <h2 id="main">
24. 24.🎯 Which CSS selector matches this element?
    <li class="red" id="hero">Hello</li> (a) #hero (b) div (c) #top (d) .hero
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) li (b) .end (c) #menu (d) .menu
26. 26.🎯 Can many elements share the same class? (a) No (b) Yes
27. 27.True or false: #hero is an id selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="red" id="hero">Hello</h2> (a) #top (b) .hero (c) #hero (d) li
29. 29.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) .note (b) .big (c) #main (d) .intro
30. 30.True or false: .menu is an id selector. (a) True (b) False
31. 31.🎯 Which element does the selector #end style? (a) <p id="end"> (b) <p class="end"> (c) <p id="hero"> (d) <h1 class="menu">
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) #top (b) .red (c) .hero (d) .big
33. 33.True or false: #top is an id selector. (a) True (b) False
34. 34.🎯 Which element does the selector #top style? (a) <span class="top"> (b) <span id="intro"> (c) <p class="red"> (d) <span id="top">
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) #top (b) .top (c) #red (d) #intro
36. 36.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
37. 37.True or false: .card is a class selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) #main (b) #note (c) p (d) .intro
39. 39.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
40. 40.True or false: .big is an id selector. (a) False (b) True

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