CSS Worksheet: Selectors Class and Id

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

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