CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 302 · 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?
   <li class="red" id="hero">Hello</li> (a) div (b) .box (c) #red (d) li
2. 2.🎯 Which element does the selector #hero style? (a) <li id="top"> (b) <div class="big"> (c) <li id="hero"> (d) <li class="hero">
3. 3.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
4. 4.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
5. 5.🎯 Which element does the selector #main style? (a) <span id="main"> (b) <span class="main"> (c) <p class="menu"> (d) <span id="logo">
6. 6.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <div> (c) <p id="hero"> (d) <li class="menu">
7. 7.🎯 Which CSS selector matches this element?
   <li class="star" id="intro">Hello</li> (a) .star (b) .intro (c) .menu (d) div
8. 8.True or false: .star is an element selector. (a) True (b) False
9. 9.🎯 Which CSS selector matches this element?
   <div class="big" id="logo">Hello</div> (a) .logo (b) #big (c) .big (d) span
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .big (b) h2 (c) #note (d) h1
11. 11.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2> (a) .end (b) li (c) #hero (d) #end
12. 12.🎯 Which element does the selector #top style? (a) <h1 id="intro"> (b) <h1 class="top"> (c) <h1 id="top"> (d) <h2 class="red">
13. 13.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="main"> (c) <li class="menu"> (d) <h1 class="menu">
14. 14.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <h2 class="box"> (d) <p class="box">
15. 15.True or false: #end is an element selector. (a) True (b) False
16. 16.True or false: .menu is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) #end (b) .menu (c) .end (d) #hero
18. 18.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
19. 19.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
20. 20.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
21. 21.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) #logo (b) #box (c) div (d) .logo
23. 23.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) #big (b) #end (c) #hero (d) span
24. 24.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) #menu (b) .main (c) p (d) h1
25. 25.True or false: #top is an element selector. (a) True (b) False
26. 26.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
27. 27.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) #menu (b) .menu (c) p (d) .end
28. 28.🎯 Which element does the selector div style? (a) <div class="note"> (b) <p class="note"> (c) <h1 id="end"> (d) <span>
29. 29.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
30. 30.True or false: img is an element selector. (a) True (b) False
31. 31.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) #menu (b) #top (c) h1 (d) .top
32. 32.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
33. 33.True or false: .note is a class selector. (a) True (b) False
34. 34.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <span> (c) <div class="star"> (d) <p class="star">
35. 35.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
36. 36.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
37. 37.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p class="star"> (c) <p id="star"> (d) <h1 class="note">
38. 38.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .big (b) #hero (c) div (d) .hero
39. 39.True or false: h1 is an element selector. (a) False (b) True
40. 40.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector

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