CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 621 · 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: #hero is an id selector. (a) False (b) True
2. 2.🎯 Which CSS selector matches this element?
   <span class="menu" id="intro">Hello</span> (a) #main (b) .intro (c) p (d) span
3. 3.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
4. 4.True or false: #main is an id selector. (a) False (b) True
5. 5.🎯 Which CSS selector matches this element?
   <p class="star" id="end">Hello</p> (a) .end (b) h1 (c) #star (d) p
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="end">Hello</h1> (a) #menu (b) .end (c) #end (d) h2
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="note" id="intro">Hello</h1> (a) .intro (b) .big (c) h1 (d) h2
9. 9.🎯 Which CSS selector matches this element?
   <li class="box" id="top">Hello</li> (a) li (b) div (c) #intro (d) #box
10. 10.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
11. 11.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) p (b) #intro (c) .red (d) .big
13. 13.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="menu">
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="box" id="intro">Hello</h2> (a) #box (b) #intro (c) .intro (d) li
15. 15.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
16. 16.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) span (b) #intro (c) div (d) .note
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) li (b) .box (c) .red (d) .main
18. 18.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <h2> (c) <div id="intro"> (d) <h1 class="star">
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) .big (b) #note (c) .note (d) li
20. 20.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) .box (b) .star (c) span (d) .logo
21. 21.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
23. 23.🎯 Can many elements share the same class? (a) No (b) Yes
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) #end (b) #star (c) .logo (d) #logo
25. 25.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) #menu (b) #top (c) p (d) #intro
26. 26.True or false: body is a class selector. (a) False (b) True
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) .box (b) li (c) #red (d) h2
28. 28.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) #top (b) #intro (c) #menu (d) .note
30. 30.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) .big (b) #main (c) #big (d) .red
31. 31.🎯 Which element does the selector .menu style? (a) <span class="note"> (b) <span id="menu"> (c) <p class="big"> (d) <span class="menu">
32. 32.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div> (a) span (b) .menu (c) #star (d) div
34. 34.True or false: .card is an id selector. (a) True (b) False
35. 35.🎯 Which element does the selector #top style? (a) <h2 class="note"> (b) <h1 id="top"> (c) <h1 class="top"> (d) <h1 id="intro">
36. 36.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <span id="intro"> (c) <span class="intro"> (d) <p class="star">
37. 37.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="big"> (c) <h2 class="big"> (d) <span id="intro">
38. 38.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) #note (b) .end (c) .big (d) #end
39. 39.🎯 Which CSS selector matches this element?
    <li class="red" id="intro">Hello</li> (a) div (b) #red (c) .red (d) .intro
40. 40.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <li> (c) <span id="top"> (d) <h2 class="note">

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