CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 358 · 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 div style? (a) <div class="big"> (b) <p class="big"> (c) <span> (d) <h1 id="hero">
2. 2.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="star" id="logo">Hello</h2> (a) #star (b) li (c) .menu (d) #logo
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.🎯 Which CSS selector matches this element?
   <span class="big" id="hero">Hello</span> (a) #top (b) #hero (c) .red (d) .hero
6. 6.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="note"> (c) <h1 class="note"> (d) <h2>
7. 7.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <span class="box"> (c) <h1 class="box"> (d) <p>
8. 8.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
9. 9.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
10. 10.🎯 Which element does the selector p style? (a) <li id="end"> (b) <h1> (c) <p class="note"> (d) <h2 class="note">
11. 11.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
12. 12.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) div (b) #logo (c) .main (d) .star
13. 13.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) p (b) #menu (c) #logo (d) .note
14. 14.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) .logo (b) #end (c) span (d) p
15. 15.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) li (b) #note (c) #main (d) .note
17. 17.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) .big (b) .logo (c) #logo (d) #note
18. 18.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
19. 19.True or false: .note is a class selector. (a) True (b) False
20. 20.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
21. 21.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <div class="star"> (c) <li class="box"> (d) <li class="red">
22. 22.True or false: .note is an id selector. (a) True (b) False
23. 23.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
24. 24.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <span class="big"> (d) <h2 id="intro">
25. 25.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) #top (b) #intro (c) p (d) #star
26. 26.True or false: .menu is a class selector. (a) True (b) False
27. 27.🎯 Which element does the selector .red style? (a) <h1 class="box"> (b) <h2 class="star"> (c) <h1 id="red"> (d) <h1 class="red">
28. 28.True or false: p is a class selector. (a) False (b) True
29. 29.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #intro (b) span (c) .top (d) #red
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) #top (b) h2 (c) #menu (d) .note
31. 31.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
33. 33.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
34. 34.🎯 Which element does the selector .big style? (a) <h2 class="big"> (b) <h2 class="red"> (c) <h2 id="big"> (d) <li class="box">
35. 35.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <span id="star"> (c) <p class="note"> (d) <span class="star">
36. 36.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <span class="top"> (c) <span id="top"> (d) <p class="red">
37. 37.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) .intro (b) div (c) span (d) .note
38. 38.True or false: #end is an id selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) h1 (b) .end (c) .big (d) #hero
40. 40.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) .star (b) #top (c) .hero (d) .menu

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