CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 353 · 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?
   <div class="note" id="top">Hello</div> (a) #intro (b) span (c) .big (d) div
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="box" id="main">Hello</h1> (a) h2 (b) #logo (c) .main (d) h1
3. 3.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="red"> (c) <p class="red"> (d) <h1>
4. 4.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 Which element does the selector span style? (a) <p> (b) <span class="red"> (c) <h1 class="red"> (d) <h2 id="hero">
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 Which CSS selector matches this element?
   <p class="menu" id="top">Hello</p> (a) .note (b) #intro (c) #menu (d) p
8. 8.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
9. 9.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
10. 10.True or false: h1 is a class selector. (a) True (b) False
11. 11.True or false: #hero is an id selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) #star (b) .menu (c) #logo (d) span
13. 13.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
14. 14.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #menu (b) h1 (c) #intro (d) .note
15. 15.True or false: #top is an id selector. (a) True (b) False
16. 16.🎯 Which element does the selector #hero style? (a) <h1 id="hero"> (b) <h1 class="hero"> (c) <h2 class="red"> (d) <h1 id="top">
17. 17.🎯 Which element does the selector .note style? (a) <p class="red"> (b) <span id="note"> (c) <span class="note"> (d) <span class="big">
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) li (b) #box (c) .box (d) .logo
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) #top (b) .big (c) li (d) .red
20. 20.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) #main (b) .intro (c) #menu (d) .menu
21. 21.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
22. 22.🎯 Which element does the selector .red style? (a) <h1 class="star"> (b) <p class="red"> (c) <p id="red"> (d) <p class="box">
23. 23.🎯 Which element does the selector .star style? (a) <li class="note"> (b) <h2 id="star"> (c) <h2 class="menu"> (d) <h2 class="star">
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) #hero (b) #red (c) .end (d) #end
25. 25.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) #intro (b) #main (c) p (d) .star
26. 26.🎯 Which element does the selector div style? (a) <span> (b) <p class="note"> (c) <div class="note"> (d) <h1 id="end">
27. 27.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p class="star"> (c) <p id="star"> (d) <h1 class="note">
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) .menu (b) #star (c) .star (d) #main
30. 30.🎯 Which element does the selector #end style? (a) <span id="hero"> (b) <span id="end"> (c) <p class="note"> (d) <span class="end">
31. 31.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
32. 32.True or false: .card is an id selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) .big (b) .note (c) #note (d) span
34. 34.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div class="star"> (c) <div class="box"> (d) <div id="box">
35. 35.True or false: #end is an element selector. (a) False (b) True
36. 36.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
37. 37.🎯 Which element does the selector #top style? (a) <span class="top"> (b) <p class="note"> (c) <span id="top"> (d) <span id="intro">
38. 38.True or false: img is an id selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) #logo (b) h2 (c) .main (d) h1
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) #star (b) .logo (c) .menu (d) .star

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