CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 544 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2.📱 The screen is 320px wide. Does the rule inside @media apply?
p {
  font-size: 16px;
}
@media (max-width: 600px) {
  p {
    font-size: 12px;
  }
} (a) Yes (b) No
3.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
p {
  font-size: 24px;
}
@media (max-width: 600px) {
  p {
    font-size: 20px;
  }
}
4.⚖️ Which selector is the strongest? (a) an id selector (b) an element selector (c) a class selector
5.✍️ How does a CSS comment start? (a) // (b) <!-- (c) # (d) /*
6.💪 How much empty space (px) is left after the last box?
.row {
  display: flex;
  width: 380px;
  justify-content: flex-start;
}
Inside are 4 boxes, each 80px wide (no margins).
7.✍️ How many declarations (property: value pairs) are in this rule?
.box {
color: red;
border: 2px solid;
}
8.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
.box {
  width: 80px;
  padding: 5px;
  border: 3px solid black;
  margin: 5px;
}
9.🎨 One CSS file can style how many pages? (a) no pages (b) only one word (c) many pages (d) only one image
10.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
11.✍️ How many declarations (property: value pairs) are in this rule?
body {
  width: 300px;
  color: red;
  font-style: italic;
}
12.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the first one (b) the shorter one (c) neither (d) the later one
13.⚖️ What colour is the text of this element?
<h1 class="red" id="intro">Hi</h1>
CSS:
#intro { color: blue; }
#intro { color: black; } (a) orange (b) black (c) blue (d) purple
14.True or false: HTML makes a link. (a) False (b) True
15.💪 How much empty space (px) is before the first box?
.row {
  display: flex;
  width: 190px;
  justify-content: flex-end;
}
Inside are 2 boxes, each 80px wide (no margins).
16.💪 How much empty space (px) is before the first box?
.row {
  display: flex;
  width: 250px;
  justify-content: flex-end;
}
Inside are 3 boxes, each 80px wide (no margins).
17.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <li id="intro"> (c) <p class="big"> (d) <h1>
18.What does justify-content: flex-end do? (a) packs boxes at the end (b) equal gaps, none at ends (c) puts boxes in the middle (d) packs boxes at the start
19.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="box"> (c) <p class="box"> (d) <h1>
20.✍️ What value is given to width in this rule?
li {
  width: 300px;
  background-color: yellow;
  border: 2px solid;
  margin: 10px;
} (a) red (b) width (c) italic (d) 300px
21.⚖️ What colour is the text of this element?
<p class="big" id="end">Hi</p>
CSS:
.big { color: purple; }
.big { color: blue; } (a) orange (b) blue (c) purple (d) white
22.🔍 Which is the odd one out? (a) shows a pop-up message (b) rounds box corners (c) lays out the page (d) sets colours and fonts
23.📱 The screen is 375px wide. Does the rule inside @media apply?
p {
  font-size: 16px;
}
@media (max-width: 600px) {
  p {
    font-size: 14px;
  }
} (a) No (b) Yes
24.📱 max-width: 600px applies when the screen is ___. (a) exactly 1000px (b) 600px or wider (c) turned off (d) 600px or narrower
25.🖌️ How big is the text, in px?
p {
  color: red;
  text-align: left;
  font-size: 12px;
  background-color: blue;
}
26.🧩 Which language reacts to a button click? (a) JavaScript (b) CSS (c) HTML
27.True or false: CSS puts a picture on a page. (a) False (b) True
28.🎯 Which CSS selector matches this element?
<li class="box" id="main">Hello</li> (a) li (b) .star (c) #box (d) .main
29.✍️ Which property is set to 20px in this rule?
body {
font-size: 20px;
text-align: center;
} (a) text-align (b) background-color (c) 20px (d) font-size
30.🎯 Which sign starts an id selector? (a) # (b) & (c) @ (d) .
31.💪 How much empty space (px) is before the first box?
.row {
  display: flex;
  width: 260px;
  justify-content: center;
}
Inside are 4 boxes, each 50px wide (no margins).
32.What does color do? (a) sets the letter colour (b) makes the text bold (c) makes letters bigger (d) centres a heading
33.🖌️ What colour is behind the letters?
h1 {
  font-size: 24px;
  text-align: left;
  background-color: blue;
  color: orange;
} (a) blue (b) orange (c) green
34.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
p {
  font-size: 20px;
}
@media (max-width: 480px) {
  p {
    font-size: 16px;
  }
}
35.📱 What does a media query check? (a) the battery level (b) the page title (c) the time of day (d) the screen width
36.📱 Responsive design means a page ___. (a) is only for laptops (b) never changes (c) fits every screen (d) has no pictures
37.💪 How much empty space (px) is left after the last box?
.row {
  display: flex;
  width: 210px;
  justify-content: flex-start;
}
Inside are 3 boxes, each 50px wide (no margins).
38.Which of these does HTML do? (a) adds space around boxes (b) lays out the page (c) shows a pop-up message (d) gives the page structure
39.Which of these does CSS do? (a) shows a pop-up message (b) gives the page structure (c) counts down a timer (d) adds space around boxes
40.🎨 Which tag connects an outside CSS file? (a) <link> (b) <css> (c) <img> (d) <a>

Answer key

Yes
Yes
20
an id selector
/*
60
2
96
many pages
an element selector
3
the later one
black
True
30
10
<p class="big">
packs boxes at the end
<p class="box">
300px
blue
shows a pop-up message
Yes
600px or narrower
12
JavaScript
False
li
font-size
#
30
sets the letter colour
blue
16
the screen width
fits every screen
60
gives the page structure
adds space around boxes
<link>

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