CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 1 · 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.

NameDateTime takenScore ___ / 40

1.✍️ How many declarations (property: value pairs) are in this rule?
h2 {
  text-align: center;
  width: 300px;
  font-size: 20px;
}
2.🎨 What does CSS stand for? (a) Colourful Site Styles (b) Cascading Style Sheets (c) Computer Style Sheets (d) Creative Sheet System
3.⚖️ What colour is the text of this element?
<p class="menu" id="main">Hi</p>
CSS:
#main { color: blue; }
#main { color: red; } (a) black (b) purple (c) red (d) blue
4.💪 How much empty space (px) is left after the last box?
.row {
  display: flex;
  width: 220px;
  justify-content: flex-start;
}
Inside are 4 boxes, each 50px wide (no margins).
5.✍️ What value is given to width in this rule?
h1 {
  width: 300px;
  background-color: yellow;
  font-size: 20px;
} (a) italic (b) red (c) 300px (d) width
6.💪 How wide (px) is each gap between two boxes?
.row {
  display: flex;
  width: 340px;
  justify-content: space-between;
}
Inside are 4 boxes, each 40px wide (no margins).
7.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 140px;
  padding: 25px;
  border: 3px solid black;
  margin: 15px;
}
8.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
9.🖌️ Where does the text sit on its line?
li {
  text-align: center;
  color: green;
  font-size: 16px;
  background-color: white;
} (a) in the middle (b) on the left (c) on the right
10.✍️ How many declarations (property: value pairs) are in this rule?
body {
  background-color: yellow;
  text-align: center;
  margin: 10px;
}
11.💪 How much empty space (px) is before the first box?
.row {
  display: flex;
  width: 250px;
  justify-content: center;
}
Inside are 3 boxes, each 50px wide (no margins).
12.🖌️ Where does the text sit on its line?
li {
  background-color: purple;
  font-size: 36px;
  color: white;
  text-align: left;
} (a) on the left (b) in the middle (c) on the right
13.🌈 Which hex code is magenta? (a) #ff0000 (b) #ffffff (c) #ff00ff (d) #000000
14.Which of these does JavaScript do? (a) makes a link (b) lays out the page (c) makes headings and lists (d) counts down a timer
15.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
16.🌈 Which colour is #ff00ff? (a) red (b) magenta (c) black (d) yellow
17.🖌️ Which CSS property picks the font style? (a) font-size (b) background-color (c) text-align (d) font-family
18.True or false: .big is an element selector. (a) False (b) True
19.✍️ What is the selector in this CSS rule?
.box {
  padding: 8px;
  border: 2px solid;
  font-style: italic;
} (a) .box (b) padding (c) h2 (d) 2px solid
20.📱 The screen is 700px wide. What font-size (px) does the paragraph get?
p {
  font-size: 16px;
}
@media (min-width: 480px) {
  p {
    font-size: 20px;
  }
}
21.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the shorter one (b) neither (c) the later one (d) the first one
22.✍️ What is the selector in this CSS rule?
.note {
  font-weight: bold;
  margin: 10px;
  font-size: 20px;
  text-align: center;
} (a) .note (b) 10px (c) font-weight (d) #top
23.🌈 In #090000 the red part is the hex number 09. What is it as a normal number?
24.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 130px;
  padding: 30px;
  border: 3px solid black;
  margin: 10px;
}
25.⚖️ What colour is the text of this element?
<h2 class="big" id="main">Hi</h2>
CSS:
h2 { color: blue; }
.big { color: white; } (a) blue (b) purple (c) black (d) white
26.🎯 Which CSS selector matches this element?
<span class="star" id="intro">Hello</span> (a) #main (b) span (c) .intro (d) p
27.✍️ Which sign goes between a property and its value? (a) : (b) - (c) ; (d) =
28.Which of these does JavaScript do? (a) makes a form box (b) makes a link (c) changes the page live (d) makes headings and lists
29.📱 max-width: 600px applies when the screen is ___. (a) exactly 1000px (b) 600px or wider (c) turned off (d) 600px or narrower
30.📦 How much space top to bottom (px) does this box take in all, margin included?
.box {
  height: 50px;
  padding: 10px;
  border: 4px solid black;
  margin: 20px;
}
31.📱 The screen is 320px wide. Does the rule inside @media apply?
p {
  font-size: 16px;
}
@media (max-width: 600px) {
  p {
    font-size: 10px;
  }
} (a) Yes (b) No
32.🖌️ Which CSS property colours behind the text? (a) text-align (b) font-size (c) color (d) background-color
33.⚖️ Which selector is the strongest? (a) an id selector (b) an element selector (c) a class selector
34.⚖️ What colour is the text of this element?
<h2 class="red" id="logo">Hi</h2>
CSS:
#logo { color: yellow; }
#logo { color: blue; } (a) orange (b) yellow (c) white (d) blue
35.🧩 Which language reacts to a button click? (a) JavaScript (b) HTML (c) CSS
36.True or false: padding is the gap round content. (a) False (b) True
37.💪 Which justify-content value equal gaps, none at ends? (a) center (b) flex-end (c) flex-start (d) space-between
38.🎯 Which CSS selector matches this element?
<li class="box" id="top">Hello</li> (a) #box (b) .top (c) li (d) #intro
39.🎯 Which element does the selector h2 style? (a) <span id="top"> (b) <li> (c) <div class="big"> (d) <h2 class="big">
40.Which of these does HTML do? (a) rounds box corners (b) sets colours and fonts (c) gives the page structure (d) shows a pop-up message

Answer key

3
Cascading Style Sheets
red
20
300px
60
196
.
in the middle
3
50
on the left
#ff00ff
counts down a timer
#
magenta
font-family
False
.box
20
the later one
.note
9
196
white
span
:
changes the page live
600px or narrower
118
Yes
background-color
an id selector
blue
JavaScript
True
space-between
li
<h2 class="big">
gives the page structure

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