CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 724 · 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: #logo is an element selector. (a) True (b) False
2. 2.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
3. 3.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
4. 4.True or false: #main is a class selector. (a) True (b) False
5. 5.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
6. 6.🎯 Which CSS selector matches this element?
   <div class="red" id="intro">Hello</div> (a) .intro (b) .box (c) #main (d) div
7. 7.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="star"> (c) <div id="end"> (d) <h1 class="star">
8. 8.🎯 Which CSS selector matches this element?
   <p class="big" id="end">Hello</p> (a) #big (b) .big (c) h1 (d) .red
9. 9.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 Which element does the selector .big style? (a) <div class="big"> (b) <span class="box"> (c) <div class="red"> (d) <div id="big">
11. 11.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) .top (b) .big (c) #intro (d) .note
12. 12.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <h2> (c) <li class="box"> (d) <h1 class="box">
14. 14.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
15. 15.True or false: .menu is an id selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) #box (b) .box (c) #end (d) .logo
17. 17.🎯 Can many elements share the same class? (a) Yes (b) No
18. 18.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) #top (b) li (c) #intro (d) .top
20. 20.True or false: #top is an element selector. (a) True (b) False
21. 21.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) .logo (b) .menu (c) #star (d) #logo
22. 22.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) .star (b) .menu (c) #star (d) h1
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) #logo (b) h2 (c) .star (d) #main
24. 24.🎯 Which element does the selector span style? (a) <h2 id="intro"> (b) <p> (c) <span class="big"> (d) <h1 class="big">
25. 25.True or false: .star is a class selector. (a) True (b) False
26. 26.🎯 Which element does the selector #main style? (a) <h1 class="big"> (b) <p class="main"> (c) <p id="logo"> (d) <p id="main">
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) h1 (b) h2 (c) .note (d) #menu
28. 28.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
29. 29.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) .menu (b) #intro (c) span (d) .top
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) #logo (b) .red (c) .box (d) .main
31. 31.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
32. 32.True or false: #end is a class selector. (a) True (b) False
33. 33.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
34. 34.True or false: .note is a class selector. (a) True (b) False
35. 35.True or false: h1 is an element selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) li (b) #top (c) h2 (d) .hero
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) h2 (b) .big (c) #note (d) #intro
38. 38.🎯 Which CSS selector matches this element?
    <div class="star" id="top">Hello</div> (a) span (b) div (c) #intro (d) #star
39. 39.🎯 Which element does the selector #intro style? (a) <h2 id="intro"> (b) <h2 class="intro"> (c) <h2 id="main"> (d) <li class="note">
40. 40.True or false: img is a class selector. (a) True (b) False

Free html and css lessons, practice and worksheets at talentjr.in/html-css-for-kids