CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 159 · 40 questions

Code tip (Rule, then maths): Find the topic: syntax, selectors, properties, colours, box model, cascade, flexbox or media queries. Decide which rule or property applies to the element. For sizes, write the sum down: both sides for the box model, free space for flexbox.

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1.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
2.📦 In the box model, which part is the line round the box? (a) margin (b) padding (c) content (d) border
3.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
4.✍️ How many declarations (property: value pairs) are in this rule?
body {
padding: 8px;
}
5.⚖️ What colour is the text of this element?
<h2 class="star" id="top">Hi</h2>
CSS:
.star { color: black; }
h2 { color: red; }
#top { color: orange; } (a) red (b) orange (c) black (d) purple
6.✍️ What value is given to margin in this rule?
h2 {
  margin: 10px;
  padding: 8px;
  border: 2px solid;
  color: red;
} (a) 10px (b) 8px (c) margin (d) bold
7.📱 What does a media query check? (a) the page title (b) the time of day (c) the screen width (d) the battery level
8.True or false: HTML changes the text size. (a) False (b) True
9.✍️ How many declarations (property: value pairs) are in this rule?
p {
  font-style: italic;
  border: 2px solid;
  background-color: yellow;
}
10.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 70px;
  padding: 15px;
  border: 5px solid black;
  margin: 5px;
}
11.🧩 Which language gives the page structure? (a) JavaScript (b) HTML (c) CSS
12.🌈 Which hex code is yellow? (a) #ff00ff (b) #ff0000 (c) #0000ff (d) #ffff00
13.🖌️ Where does the text sit on its line?
h1 {
  font-size: 20px;
  text-align: center;
  background-color: black;
  color: red;
} (a) on the left (b) in the middle (c) on the right
14.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 270px;
  padding: 30px;
  border: 2px solid black;
  margin: 5px;
}
15.True or false: JavaScript shows a pop-up message. (a) False (b) True
16.🌈 Which colour is #ff0000? (a) blue (b) white (c) bright green (d) red
17.📱 The screen is 1366px wide. Does the rule inside @media apply?
p {
  font-size: 24px;
}
@media (max-width: 1024px) {
  p {
    font-size: 20px;
  }
} (a) No (b) Yes
18.✍️ What is the selector in this CSS rule?
h1 {
font-size: 20px;
background-color: yellow;
} (a) p (b) font-size (c) yellow (d) h1
19.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
20.✍️ How many declarations (property: value pairs) are in this rule?
h2 {
  margin: 10px;
  font-weight: bold;
  color: red;
  padding: 8px;
}
21.⚖️ What colour is the text of this element?
<h2 class="menu" id="logo">Hi</h2>
CSS:
#logo { color: purple; }
#logo { color: white; } (a) orange (b) purple (c) black (d) white
22.🖌️ Which CSS property makes letters bigger? (a) color (b) background-color (c) font-size (d) text-align
23.💪 How wide (px) is each gap between two boxes?
.row {
  display: flex;
  width: 400px;
  justify-content: space-between;
}
Inside are 3 boxes, each 100px wide (no margins).
24.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
p {
  font-size: 16px;
}
@media (min-width: 1024px) {
  p {
    font-size: 18px;
  }
}
25.📱 The screen is 414px wide. What font-size (px) does the paragraph get?
p {
  font-size: 16px;
}
@media (max-width: 1024px) {
  p {
    font-size: 10px;
  }
}
26.⚖️ What colour is the text of this element?
<h2 class="note" id="hero">Hi</h2>
CSS:
h2 { color: orange; }
#hero { color: purple; }
.note { color: green; } (a) blue (b) purple (c) green (d) orange
27.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
28.⚖️ Which selector is the weakest? (a) a class selector (b) an element selector (c) an id selector
29.🌈 In #2a0000 the red part is the hex number 2a. What is it as a normal number?
30.✍️ Which property is set to 20px in this rule?
.box {
font-style: italic;
font-size: 20px;
} (a) text-align (b) background-color (c) font-size (d) 20px
31.🌈 In #rrggbb, which colour do the last two digits give? (a) blue (b) white (c) red (d) green
32.🔍 Which is the odd one out? (a) changes the text size (b) sets colours and fonts (c) counts down a timer (d) lays out the page
33.✍️ What is the selector in this CSS rule?
.note {
  font-weight: bold;
  padding: 8px;
  background-color: yellow;
} (a) font-weight (b) 8px (c) .note (d) #top
34.🖌️ What colour are the letters?
p {
  color: white;
  font-size: 12px;
  text-align: right;
  background-color: purple;
} (a) orange (b) purple (c) white
35.💪 Which flexbox property picks row or column? (a) gap (b) display: flex (c) justify-content (d) flex-direction
36.⚖️ What colour is the text of this element?
<h2 class="big" id="logo">Hi</h2>
CSS:
h2 { color: red; }
h2 { color: orange; } (a) red (b) white (c) green (d) orange
37.⚖️ What colour is the text of this element?
<h2 class="red" id="main">Hi</h2>
CSS:
.red { color: white; }
.red { color: black; } (a) yellow (b) purple (c) white (d) black
38.📦 In the box model, which part is a solid or dotted edge? (a) border (b) padding (c) margin (d) content
39.🌈 Which colour of light is strongest in rgb(158, 58, 35)? (a) blue (b) red (c) green
40.✍️ Which property is set to bold in this rule?
p {
font-weight: bold;
font-size: 20px;
} (a) bold (b) width (c) font-weight (d) border

Answer key

a class selector
border
a class selector
1
orange
10px
the screen width
False
3
110
HTML
#ffff00
in the middle
334
True
red
No
h1
.
4
white
font-size
50
16
10
purple
1
an element selector
42
font-size
blue
counts down a timer
.note
white
flex-direction
orange
black
border
red
font-weight

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