CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 628 · 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.True or false: p is an element selector. (a) True (b) False
2. 2.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which CSS selector matches this element?
   <p class="star" id="logo">Hello</p> (a) p (b) #star (c) .logo (d) .menu
4. 4.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <h1 class="star"> (d) <p id="logo">
5. 5.🎯 Which CSS selector matches this element?
   <div class="big" id="end">Hello</div> (a) .big (b) .red (c) #big (d) span
6. 6.True or false: #top is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="intro">Hello</h2> (a) #menu (b) #intro (c) .note (d) li
8. 8.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
9. 9.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
10. 10.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="red"> (c) <h1 class="box"> (d) <h2 class="star">
11. 11.🎯 Which sign starts an id selector? (a) # (b) . (c) & (d) @
12. 12.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
13. 13.True or false: #main is an id selector. (a) True (b) False
14. 14.True or false: .note is an id selector. (a) True (b) False
15. 15.🎯 Can many elements share the same class? (a) No (b) Yes
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) #menu (b) .intro (c) #intro (d) #main
17. 17.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) #intro (b) #star (c) div (d) li
18. 18.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) h1 (b) .logo (c) #logo (d) #note
19. 19.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
20. 20.True or false: #logo is an element selector. (a) False (b) True
21. 21.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
22. 22.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #end (b) h1 (c) .red (d) .box
23. 23.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) #top (b) span (c) .big (d) p
24. 24.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 class="red"> (c) <h1 class="big"> (d) <h1 id="big">
26. 26.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) span (b) .hero (c) #big (d) p
27. 27.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <li id="logo"> (d) <h2 class="red">
29. 29.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) span (b) .end (c) #box (d) p
30. 30.🎯 Which element does the selector .red style? (a) <span class="red"> (b) <span id="red"> (c) <span class="box"> (d) <p class="star">
31. 31.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <span class="star"> (c) <div id="main"> (d) <div class="main">
32. 32.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="menu"> (c) <h1 class="menu"> (d) <h2>
33. 33.🎯 Which CSS selector matches this element?
    <span class="big" id="logo">Hello</span> (a) .red (b) span (c) #end (d) .logo
34. 34.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <li class="note"> (c) <h2 class="menu"> (d) <h2 class="star">
35. 35.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
36. 36.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
37. 37.True or false: .card is an id selector. (a) False (b) True
38. 38.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
39. 39.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="logo"> (c) <div class="note"> (d) <li id="main">

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