CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 672 · 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 .menu style? (a) <h1 class="note"> (b) <h2 class="big"> (c) <h1 id="menu"> (d) <h1 class="menu">
2. 2.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 2 (d) 5
3. 3.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
4. 4.🎯 Which element does the selector #main style? (a) <h2 class="main"> (b) <h2 id="logo"> (c) <li class="red"> (d) <h2 id="main">
5. 5.🎯 Which element does the selector p style? (a) <h2 class="box"> (b) <p class="box"> (c) <h1> (d) <li id="main">
6. 6.True or false: #logo is an id selector. (a) True (b) False
7. 7.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <li> (c) <div class="red"> (d) <h2 class="red">
9. 9.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
10. 10.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
11. 11.True or false: h1 is a class selector. (a) True (b) False
12. 12.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="main"> (c) <li id="logo"> (d) <div class="note">
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) .hero (b) li (c) #box (d) h2
14. 14.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) #main (b) .main (c) .big (d) #note
16. 16.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) .intro (b) h1 (c) .red (d) .big
17. 17.🎯 Which element does the selector .big style? (a) <li id="big"> (b) <li class="red"> (c) <li class="big"> (d) <div class="box">
18. 18.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
19. 19.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) .hero (b) .menu (c) li (d) #star
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) .menu (b) .end (c) .star (d) #star
21. 21.🎯 Which element does the selector p style? (a) <h1> (b) <li id="intro"> (c) <h2 class="star"> (d) <p class="star">
22. 22.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) #box (b) p (c) h1 (d) .top
23. 23.🎯 Which CSS selector matches this element?
    <span class="red" id="main">Hello</span> (a) #red (b) .red (c) p (d) .box
24. 24.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p id="star"> (c) <h1 class="note"> (d) <p class="star">
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) #top (b) .note (c) .top (d) li
26. 26.True or false: .star is a class selector. (a) False (b) True
27. 27.True or false: p is an element selector. (a) False (b) True
28. 28.True or false: .big is a class selector. (a) True (b) False
29. 29.🎯 Which element does the selector div style? (a) <span> (b) <div class="box"> (c) <h1 id="logo"> (d) <p class="box">
30. 30.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
31. 31.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) #top (b) span (c) div (d) #menu
32. 32.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) #logo (b) #box (c) h1 (d) p
33. 33.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) .intro (b) #main (c) .big (d) #intro
34. 34.True or false: #top is a class selector. (a) True (b) False
35. 35.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .box (b) #top (c) .hero (d) #box
36. 36.🎯 Which element does the selector h2 style? (a) <span id="intro"> (b) <h2 class="box"> (c) <li> (d) <div class="box">
37. 37.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
38. 38.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) .top (b) p (c) #top (d) #note
39. 39.🎯 Which element does the selector #top style? (a) <h2 class="big"> (b) <h1 class="top"> (c) <h1 id="intro"> (d) <h1 id="top">
40. 40.🎯 Which CSS selector matches this element?
    <div class="big" id="top">Hello</div> (a) span (b) #big (c) .big (d) .red

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