CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 784 · 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.True or false: h1 is a class selector. (a) True (b) False
2. 2.True or false: li is an element selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <li class="box" id="end">Hello</li> (a) #hero (b) .end (c) .box (d) div
4. 4.🎯 Which CSS selector matches this element?
   <div class="menu" id="intro">Hello</div> (a) #main (b) .intro (c) .menu (d) span
5. 5.🎯 Which element does the selector h1 style? (a) <div id="main"> (b) <h2> (c) <h1 class="big"> (d) <li class="big">
6. 6.🎯 Which element does the selector .star style? (a) <li class="star"> (b) <li class="menu"> (c) <li id="star"> (d) <div class="note">
7. 7.🎯 Which CSS selector matches this element?
   <li class="red" id="intro">Hello</li> (a) #main (b) #red (c) #intro (d) .box
8. 8.🎯 Which CSS selector matches this element?
   <span class="red" id="intro">Hello</span> (a) .red (b) p (c) .box (d) .intro
9. 9.🎯 Which CSS selector matches this element?
   <span class="big" id="main">Hello</span> (a) #logo (b) #main (c) .red (d) #big
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) h1 (b) .top (c) h2 (d) #box
11. 11.🎯 Which sign starts an id selector? (a) # (b) & (c) @ (d) .
12. 12.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector #top style? (a) <h1 id="top"> (b) <h1 id="intro"> (c) <h1 class="top"> (d) <h2 class="box">
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) .logo (b) h2 (c) li (d) #end
15. 15.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
16. 16.🎯 Which element does the selector span style? (a) <p> (b) <span class="menu"> (c) <h1 class="menu"> (d) <h2 id="main">
17. 17.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) #star (b) #main (c) div (d) li
18. 18.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
19. 19.🎯 Which CSS selector matches this element?
    <p class="note" id="hero">Hello</p> (a) #top (b) p (c) .hero (d) #note
20. 20.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p> (a) .star (b) h1 (c) #logo (d) .main
21. 21.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
22. 22.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) .end (b) #hero (c) h1 (d) p
23. 23.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
24. 24.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) #big (b) span (c) #logo (d) .main
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2> (a) .end (b) #hero (c) .menu (d) #end
26. 26.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) #end (b) #logo (c) .note (d) .logo
27. 27.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
29. 29.🎯 Which element does the selector .menu style? (a) <span class="note"> (b) <p class="big"> (c) <span class="menu"> (d) <span id="menu">
30. 30.True or false: .note is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector .box style? (a) <h2 class="box"> (b) <li class="menu"> (c) <h2 id="box"> (d) <h2 class="star">
32. 32.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .big (b) #intro (c) #top (d) h1
33. 33.🎯 Which element does the selector #logo style? (a) <p id="end"> (b) <p class="logo"> (c) <h1 class="box"> (d) <p id="logo">
34. 34.🎯 Which element does the selector h2 style? (a) <h2 class="big"> (b) <li> (c) <span id="main"> (d) <div class="big">
35. 35.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
36. 36.True or false: .note is an element selector. (a) True (b) False
37. 37.🎯 Which element does the selector span style? (a) <span class="star"> (b) <p> (c) <h2 id="main"> (d) <h1 class="star">
38. 38.🎯 Which element does the selector .note style? (a) <h2 class="red"> (b) <h1 id="note"> (c) <h1 class="note"> (d) <h1 class="big">
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .top (b) #star (c) #intro (d) h2
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2> (a) h2 (b) .end (c) #star (d) #hero

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