CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 653 · 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.🎯 Which CSS selector matches this element?
<span class="red" id="intro">Hello</span> (a) #intro (b) p (c) .box (d) #red
2.🌈 Which hex code is yellow? (a) #ffff00 (b) #00ffff (c) #00ff00 (d) #000000
3.🔍 Which is the odd one out? (a) sets colours and fonts (b) changes the page live (c) adds space around boxes (d) changes the text size
4.💪 Which justify-content value puts boxes in the middle? (a) center (b) space-between (c) flex-end (d) flex-start
5.✍️ Which property is set to 10px in this rule?
.note {
margin: 10px;
font-weight: bold;
} (a) font-weight (b) 10px (c) margin (d) padding
6.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
7.True or false: HTML rounds box corners. (a) True (b) False
8.⚖️ What colour is the text of this element?
<p class="red" id="main">Hi</p>
CSS:
p { color: orange; }
p { color: blue; } (a) orange (b) white (c) blue (d) green
9.✍️ What value is given to text-align in this rule?
.box {
  border: 2px solid;
  padding: 8px;
  text-align: center;
  color: red;
} (a) yellow (b) center (c) text-align (d) 10px
10.⚖️ What colour is the text of this element?
<p class="box" id="intro">Hi</p>
CSS:
p { color: green; }
#intro { color: orange; } (a) green (b) yellow (c) red (d) orange
11.✍️ Which sign goes between a property and its value? (a) : (b) - (c) ; (d) =
12.🖌️ What colour is behind the letters?
p {
  color: yellow;
  text-align: left;
  font-size: 36px;
  background-color: white;
} (a) green (b) white (c) yellow
13.✍️ How does a CSS comment start? (a) /* (b) # (c) // (d) <!--
14.📦 In the box model, which part is space inside the border? (a) margin (b) content (c) padding (d) border
15.⚖️ What colour is the text of this element?
<h1 class="menu" id="hero">Hi</h1>
CSS:
h1 { color: red; }
.menu { color: green; }
#hero { color: blue; } (a) blue (b) green (c) red (d) orange
16.Which of these does JavaScript do? (a) lays out the page (b) rounds box corners (c) adds space around boxes (d) shows a pop-up message
17.🌈 In #d90000 the red part is the hex number d9. What is it as a normal number?
18.✍️ Which property is set to 20px in this rule?
body {
  font-size: 20px;
  text-align: center;
  margin: 10px;
} (a) text-align (b) background-color (c) 20px (d) font-size
19.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) black (c) blue (d) green
20.💪 How much empty space (px) is left after the last box?
.row {
  display: flex;
  width: 250px;
  justify-content: flex-start;
}
Inside are 4 boxes, each 60px wide (no margins).
21.⚖️ What colour is the text of this element?
<p class="note" id="end">Hi</p>
CSS:
#end { color: red; }
p { color: blue; } (a) purple (b) red (c) blue (d) white
22.📱 The screen is 414px wide. What font-size (px) does the paragraph get?
p {
  font-size: 16px;
}
@media (max-width: 768px) {
  p {
    font-size: 12px;
  }
}
23.⚖️ What colour is the text of this element?
<p class="box" id="main">Hi</p>
CSS:
#main { color: yellow; }
p { color: green; }
.box { color: orange; } (a) green (b) orange (c) yellow (d) red
24.📱 The screen is 320px wide. Does the rule inside @media apply?
p {
  font-size: 12px;
}
@media (max-width: 1024px) {
  p {
    font-size: 6px;
  }
} (a) No (b) Yes
25.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
26.🌈 In #000047 the blue part is the hex number 47. What is it as a normal number?
27.What does justify-content: flex-end do? (a) puts boxes in the middle (b) packs boxes at the start (c) equal gaps, none at ends (d) packs boxes at the end
28.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 120px;
  padding: 5px;
  border: 5px solid black;
  margin: 5px;
}
29.⚖️ What colour is the text of this element?
<h1 class="red" id="top">Hi</h1>
CSS:
.red { color: red; }
.red { color: blue; } (a) white (b) green (c) red (d) blue
30.⚖️ Which selector is the weakest? (a) a class selector (b) an id selector (c) an element selector
31.📱 The screen is 1366px wide. What font-size (px) does the paragraph get?
p {
  font-size: 16px;
}
@media (max-width: 480px) {
  p {
    font-size: 14px;
  }
}
32.✍️ How many declarations (property: value pairs) are in this rule?
.box {
font-weight: bold;
}
33.⚖️ Which selector is the strongest? (a) an element selector (b) an id selector (c) a class selector
34.🎨 A CSS file usually ends with which extension? (a) .png (b) .css (c) .js (d) .html
35.✍️ In color: blue; which part is the property? (a) ; (b) : (c) blue (d) color
36.📱 max-width: 600px applies when the screen is ___. (a) 600px or wider (b) exactly 1000px (c) turned off (d) 600px or narrower
37.🖌️ What colour is behind the letters?
h1 {
  background-color: black;
  text-align: left;
  font-size: 16px;
  color: purple;
} (a) purple (b) black (c) orange
38.✍️ Which property is set to bold in this rule?
#top {
color: red;
font-weight: bold;
} (a) border (b) bold (c) width (d) font-weight
39.⚖️ What colour is the text of this element?
<h1 class="big" id="logo">Hi</h1>
CSS:
#logo { color: purple; }
.big { color: orange; } (a) purple (b) white (c) orange (d) green
40.🔍 Which is the odd one out? (a) lays out the page (b) makes a link (c) changes the text size (d) adds space around boxes

Answer key

#intro
#ffff00
changes the page live
center
margin
an id selector
False
blue
center
orange
:
white
/*
padding
blue
shows a pop-up message
217
font-size
red
10
red
12
yellow
Yes
.
71
packs boxes at the end
140
blue
an element selector
16
1
an id selector
.css
color
600px or narrower
black
font-weight
purple
makes a link

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