CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 138 · 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="note" id="logo">Hello</h2> (a) #note (b) #end (c) .big (d) .note
2. 2.🎯 Which CSS selector matches this element?
   <p class="box" id="intro">Hello</p> (a) #main (b) .star (c) #box (d) p
3. 3.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
4. 4.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="box"> (c) <h2 class="star"> (d) <h1 class="red">
5. 5.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <p class="note"> (d) <h2 class="note">
6. 6.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 2 (d) 5
7. 7.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
9. 9.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .red (b) .intro (c) h2 (d) #big
12. 12.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
13. 13.True or false: #end is a class selector. (a) False (b) True
14. 14.True or false: #hero is a class selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <div class="red" id="hero">Hello</div> (a) .box (b) span (c) #red (d) div
16. 16.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
17. 17.🎯 Which element does the selector div style? (a) <p class="note"> (b) <div class="note"> (c) <h1 id="main"> (d) <span>
18. 18.🎯 Which element does the selector .red style? (a) <h1 class="star"> (b) <p class="red"> (c) <p id="red"> (d) <p class="box">
19. 19.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) div (b) .main (c) .star (d) span
20. 20.🎯 Can many elements share the same class? (a) No (b) Yes
21. 21.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <h2 id="logo"> (c) <li class="box"> (d) <h2 id="end">
22. 22.🎯 Which element does the selector h1 style? (a) <h1 class="note"> (b) <li class="note"> (c) <div id="logo"> (d) <h2>
23. 23.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="box"> (c) <span class="box"> (d) <h2 id="end">
24. 24.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
25. 25.🎯 Which CSS selector matches this element?
    <span class="red" id="end">Hello</span> (a) span (b) p (c) #hero (d) #red
26. 26.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
27. 27.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
28. 28.True or false: .menu is an element selector. (a) False (b) True
29. 29.True or false: li is a class selector. (a) False (b) True
30. 30.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="star"> (c) <h2 id="intro"> (d) <span class="star">
31. 31.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) div (b) .big (c) #logo (d) #end
33. 33.🎯 Which element does the selector #intro style? (a) <div class="intro"> (b) <div id="intro"> (c) <div id="main"> (d) <span class="big">
34. 34.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) #red (b) .end (c) li (d) #hero
35. 35.🎯 Which element does the selector p style? (a) <p class="star"> (b) <h1> (c) <li id="intro"> (d) <h2 class="star">
36. 36.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) .main (b) .note (c) span (d) div
38. 38.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <li id="top"> (d) <h2 class="red">
39. 39.True or false: #main is an element selector. (a) True (b) False
40. 40.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector

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