CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 840 · 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 .note style? (a) <h2 class="note"> (b) <li class="red"> (c) <h2 class="big"> (d) <h2 id="note">
2. 2.🎯 Which CSS selector matches this element?
   <p class="big" id="top">Hello</p> (a) h1 (b) #top (c) .red (d) #big
3. 3.🎯 Which element does the selector span style? (a) <h1 class="red"> (b) <p> (c) <h2 id="top"> (d) <span class="red">
4. 4.🎯 Which CSS selector matches this element?
   <p class="box" id="intro">Hello</p> (a) h1 (b) #intro (c) #box (d) .star
5. 5.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="logo">Hello</h2> (a) .logo (b) #menu (c) li (d) .menu
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="red" id="top">Hello</h1> (a) #red (b) #intro (c) .top (d) #top
7. 7.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 Which CSS selector matches this element?
   <p class="star" id="logo">Hello</p> (a) h1 (b) #logo (c) .logo (d) #end
9. 9.🎯 Which CSS selector matches this element?
   <h2 class="box" id="main">Hello</h2> (a) li (b) .star (c) #main (d) #box
10. 10.True or false: #logo is an id selector. (a) False (b) True
11. 11.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="note"> (c) <h2 id="logo"> (d) <span class="note">
12. 12.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) .end (b) div (c) .big (d) #note
13. 13.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) #main (b) h2 (c) #logo (d) #box
15. 15.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) .star (b) #top (c) .top (d) #box
16. 16.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) #main (b) #menu (c) .main (d) #logo
17. 17.True or false: #top is a class selector. (a) False (b) True
18. 18.True or false: #logo is a class selector. (a) False (b) True
19. 19.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
20. 20.🎯 What kind of selector is .note? (a) a class selector (b) an element selector (c) an id selector
21. 21.True or false: .card is an id selector. (a) False (b) True
22. 22.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <p class="menu"> (c) <span> (d) <div class="menu">
23. 23.True or false: #logo is an element selector. (a) True (b) False
24. 24.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <li class="big"> (c) <h2 id="menu"> (d) <h2 class="menu">
25. 25.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
26. 26.🎯 Can many elements share the same class? (a) No (b) Yes
27. 27.🎯 Which element does the selector #intro style? (a) <div id="main"> (b) <span class="note"> (c) <div class="intro"> (d) <div id="intro">
28. 28.True or false: .big is a class selector. (a) False (b) True
29. 29.True or false: li is an element selector. (a) False (b) True
30. 30.🎯 Which element does the selector #end style? (a) <p class="end"> (b) <p id="end"> (c) <h1 class="note"> (d) <p id="hero">
31. 31.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
32. 32.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) #main (b) .red (c) .box (d) p
33. 33.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
34. 34.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) .top (b) .note (c) #note (d) #intro
36. 36.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
37. 37.True or false: #top is an id selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) h2 (b) h1 (c) #red (d) #logo
39. 39.🎯 Which element does the selector p style? (a) <li id="end"> (b) <p class="note"> (c) <h1> (d) <h2 class="note">
40. 40.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) #hero (b) div (c) .hero (d) .star

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