CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 832 · 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?
   <h2 class="menu" id="end">Hello</h2> (a) #menu (b) .end (c) li (d) .menu
2. 2.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
3. 3.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
4. 4.🎯 Which sign starts a class selector? (a) . (b) & (c) # (d) @
5. 5.🎯 Which element does the selector #top style? (a) <h1 id="intro"> (b) <h1 class="top"> (c) <h2 class="red"> (d) <h1 id="top">
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="big" id="intro">Hello</h2> (a) li (b) .intro (c) #big (d) h2
7. 7.🎯 Which CSS selector matches this element?
   <p class="menu" id="end">Hello</p> (a) .end (b) .menu (c) #hero (d) #menu
8. 8.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
9. 9.🎯 Which CSS selector matches this element?
   <p class="star" id="hero">Hello</p> (a) .hero (b) #star (c) h1 (d) #hero
10. 10.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) .big (b) p (c) span (d) #hero
12. 12.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) .note (b) .main (c) #note (d) #logo
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) #top (b) #big (c) h1 (d) h2
14. 14.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) #logo (b) #menu (c) .logo (d) #end
15. 15.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) .note (b) #top (c) #intro (d) span
16. 16.True or false: #main is an id selector. (a) True (b) False
17. 17.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
18. 18.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
19. 19.🎯 Which element does the selector .big style? (a) <div class="big"> (b) <div class="red"> (c) <span class="box"> (d) <div id="big">
20. 20.🎯 Which element does the selector li style? (a) <li class="note"> (b) <div> (c) <span class="note"> (d) <p id="intro">
21. 21.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) span (b) .note (c) .intro (d) p
22. 22.🎯 Which element does the selector #end style? (a) <h1 id="end"> (b) <h1 class="end"> (c) <h1 id="hero"> (d) <h2 class="note">
23. 23.🎯 Which element does the selector #main style? (a) <h1 class="note"> (b) <p class="main"> (c) <p id="logo"> (d) <p id="main">
24. 24.🎯 Which element does the selector .star style? (a) <h2 class="note"> (b) <h1 class="star"> (c) <h1 id="star"> (d) <h1 class="menu">
25. 25.🎯 Which element does the selector .note style? (a) <h1 class="note"> (b) <h1 id="note"> (c) <h2 class="red"> (d) <h1 class="big">
26. 26.🎯 Can many elements share the same class? (a) Yes (b) No
27. 27.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <h2> (c) <h1 class="star"> (d) <div id="end">
28. 28.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) .hero (b) #menu (c) #top (d) li
29. 29.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
30. 30.True or false: #logo is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector #intro style? (a) <p id="main"> (b) <p class="intro"> (c) <p id="intro"> (d) <h1 class="menu">
32. 32.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) .top (b) .big (c) .red (d) #big
34. 34.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <h1 class="box"> (c) <p id="end"> (d) <p id="logo">
35. 35.True or false: li is an id selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) #main (b) .intro (c) #star (d) li
37. 37.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) h1 (b) #main (c) .menu (d) #menu
38. 38.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h1> (c) <h2 class="big"> (d) <li id="top">
40. 40.🎯 Which element does the selector .box style? (a) <li class="box"> (b) <div class="menu"> (c) <li id="box"> (d) <li class="star">

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