CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 209 · 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 .big style? (a) <p class="red"> (b) <p class="big"> (c) <p id="big"> (d) <h1 class="box">
2. 2.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which CSS selector matches this element?
   <span class="menu" id="logo">Hello</span> (a) p (b) .note (c) #logo (d) #menu
4. 4.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
5. 5.🎯 Which CSS selector matches this element?
   <h2 class="red" id="logo">Hello</h2> (a) #red (b) h2 (c) li (d) .logo
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
8. 8.True or false: .note is a class selector. (a) True (b) False
9. 9.🎯 Which element does the selector .menu style? (a) <p class="big"> (b) <span id="menu"> (c) <span class="note"> (d) <span class="menu">
10. 10.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
11. 11.🎯 Which element does the selector span style? (a) <p> (b) <span class="note"> (c) <h1 class="note"> (d) <h2 id="top">
12. 12.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) p (b) h1 (c) #big (d) #hero
14. 14.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
15. 15.True or false: .card is an id selector. (a) True (b) False
16. 16.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) #note (b) .big (c) span (d) p
17. 17.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) h1 (b) #star (c) .star (d) .menu
19. 19.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) #note (b) p (c) .end (d) span
20. 20.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
21. 21.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) div (b) #main (c) .main (d) #logo
23. 23.True or false: p is an id selector. (a) True (b) False
24. 24.True or false: img is an element selector. (a) True (b) False
25. 25.True or false: #hero is an id selector. (a) False (b) True
26. 26.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="box"> (c) <h2 class="star"> (d) <h1 class="red">
27. 27.True or false: img is a class selector. (a) False (b) True
28. 28.🎯 Which element does the selector #main style? (a) <li class="note"> (b) <h2 id="main"> (c) <h2 id="logo"> (d) <h2 class="main">
29. 29.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
30. 30.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
31. 31.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
32. 32.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) .end (b) #hero (c) .star (d) #star
33. 33.🎯 Which element does the selector .star style? (a) <p class="note"> (b) <span class="menu"> (c) <span id="star"> (d) <span class="star">
34. 34.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) .red (b) div (c) #hero (d) .end
35. 35.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) #logo (b) .star (c) .main (d) div
36. 36.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <li id="end"> (c) <div class="red"> (d) <li id="hero">
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) h2 (b) h1 (c) .red (d) #big
38. 38.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) .hero (b) div (c) .star (d) .menu
39. 39.🎯 Which element does the selector li style? (a) <span class="note"> (b) <p id="intro"> (c) <li class="note"> (d) <div>
40. 40.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <p class="menu"> (c) <h1 id="end"> (d) <span>

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