CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 937 · 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.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
2. 2.🎯 Which element does the selector .star style? (a) <li class="star"> (b) <li class="menu"> (c) <li id="star"> (d) <div class="note">
3. 3.🎯 Which element does the selector #end style? (a) <h2 id="hero"> (b) <h2 id="end"> (c) <h2 class="end"> (d) <li class="big">
4. 4.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
5. 5.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
6. 6.🎯 Which CSS selector matches this element?
   <li class="red" id="logo">Hello</li> (a) div (b) .box (c) #logo (d) .logo
7. 7.True or false: .card is a class selector. (a) True (b) False
8. 8.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
9. 9.True or false: .star is a class selector. (a) True (b) False
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) #end (b) h2 (c) .logo (d) li
13. 13.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .hero (b) .big (c) .note (d) div
15. 15.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) #top (b) span (c) p (d) #star
16. 16.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) .big (b) .intro (c) #big (d) #main
17. 17.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) div (b) .red (c) #main (d) .box
18. 18.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) .end (b) #end (c) .star (d) #box
19. 19.🎯 Which element does the selector #main style? (a) <p class="box"> (b) <span id="logo"> (c) <span class="main"> (d) <span id="main">
20. 20.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
21. 21.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
22. 22.True or false: .menu is an id selector. (a) False (b) True
23. 23.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 Which element does the selector .box style? (a) <span id="box"> (b) <span class="star"> (c) <span class="box"> (d) <p class="menu">
25. 25.🎯 Which CSS selector matches this element?
    <span class="menu" id="hero">Hello</span> (a) #menu (b) #top (c) .note (d) .menu
26. 26.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <p class="red"> (c) <span id="note"> (d) <span class="note">
27. 27.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
28. 28.True or false: .note is a class selector. (a) False (b) True
29. 29.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li class="star"> (c) <li class="box"> (d) <li id="box">
30. 30.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <li class="star"> (c) <div> (d) <span class="star">
31. 31.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) p (b) .menu (c) #logo (d) .main
32. 32.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) .note (b) #main (c) #menu (d) span
33. 33.True or false: h1 is an element selector. (a) True (b) False
34. 34.🎯 Which element does the selector #logo style? (a) <h2 id="logo"> (b) <li class="star"> (c) <h2 id="end"> (d) <h2 class="logo">
35. 35.True or false: #hero is an id selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) .note (b) li (c) #note (d) .intro
37. 37.True or false: .menu is a class selector. (a) True (b) False
38. 38.True or false: .star is an id selector. (a) False (b) True
39. 39.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) #box (b) .end (c) .box (d) p

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