feat(curriculum): add css colors lab (#56290)

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Ihechikara Vincent Abba 2024-12-13 07:34:50 +01:00 committed by GitHub
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"In this workshop, you'll build a set of colored markers. You'll practice different ways to set color values and how to pair colors with each other."
]
},
"ogdb": { "title": "64", "intro": [] },
"lab-colored-boxes": {
"title": "Design a Set of Colored Boxes",
"intro": [
"In this lab, you'll practice using CSS colors by designing boxes"
]
},
"review-css-colors": {
"title": "CSS Colors Review",
"intro": [

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---
title: Introduction to the Design a Set of Colored Boxes
block: lab-colored-boxes
superBlock: full-stack-developer
---
## Introduction to the Design Colored Boxes
In this lab, you'll practice using CSS colors by designing colored boxes.

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{
"name": "Design a Set of Colored Boxes",
"isUpcomingChange": true,
"usesMultifileEditor": true,
"dashedName": "lab-colored-boxes",
"superBlock": "full-stack-developer",
"challengeOrder": [{ "id": "66f3f6eb66ea9dc41cdc30df", "title": "Design a Set Colored Boxes" }],
"helpCategory": "HTML-CSS",
"blockType": "lab",
"blockLayout": "link"
}

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---
id: 66f3f6eb66ea9dc41cdc30df
title: Design a Set of Colored Boxes
challengeType: 25
dashedName: set-of-colored-boxes
demoType: onClick
---
# --description--
In this lab, you'll practice using CSS colors by designing boxes.
**Objective:** Fulfill the user stories below and get all the tests to pass to complete the lab.
**User Stories:**
1. You should set the background color for `body` to `#f4f4f4`.
2. You should have a `div` with a class of `color-grid` to hold all your color elements.
3. You should have five `div` elements within the `.color-grid` element.
4. The five `div` elements should each have a class of `color-box` and `color#`, where `#` is the number of the order of that `div`. For example: `color1` for the first `div`, `color2` for the second, and so on.
5. The `.color-box` class should have a set `width` and `height` so your `div` elements are visible on the page.
6. The `.color1` element should have a `background-color` that uses hexadecimal color value.
7. The `.color2` element should have a `background-color` that uses an RGB color value.
8. The `.color3` element should have a `background-color` that uses a predefined (word) color value.
9. The `.color4` element should have a `background-color` that uses a HSL color value.
10. The `.color5` element should have a `background-color` set.
**Note:** Be sure to link your stylesheet in your HTML and apply your CSS.
# --hints--
`body` should have a background color of `#f4f4f4`.
```js
const body = document.body;
const bodyBgColor = getComputedStyle(body).backgroundColor;
assert.strictEqual(bodyBgColor, 'rgb(244, 244, 244)');
```
You should have a `div` element with a class of `color-grid`.
```js
const colorGrid = document.querySelector('div.color-grid');
assert.exists(colorGrid);
```
You should have five `div` elements within the `.color-grid` element.
```js
const colorGridChildren = document.querySelectorAll('div.color-grid > div');
assert.strictEqual(colorGridChildren.length, 5);
```
Each of the five `div` elements should each have a class of `color-box` and `color#`—substitute the order of the `div` for the `#` symbol.
```js
const colorGridChildren = document.querySelectorAll('div.color-grid > div');
assert.strictEqual(colorGridChildren.length, 5);
colorGridChildren.forEach((child, index) => {
const colorClass = `color${index + 1}`;
assert.isTrue(child.classList.contains('color-box'));
assert.isTrue(child.classList.contains(colorClass));
});
```
The `.color-box` element should have a set `width` and `height`.
```js
const colorBox = document.querySelector('.color-box');
assert.exists(colorBox);
const colorBoxStyles = getComputedStyle(colorBox);
const width = colorBoxStyles.width;
const height = colorBoxStyles.height;
assert.notStrictEqual(width, '0px');
assert.notStrictEqual(height, '0px');
```
The `.color1` element should have a hexadecimal background color.
```js
assert.match(__helpers.removeCssComments(code), /\.color1\s*{[^}]*\bbackground-color\s*:\s*#[0-9a-fA-F]{3,6}\s*;[^}]*}/);
```
The `.color2` element should have an RGB background color.
```js
assert.match(__helpers.removeCssComments(code), /\.color2\s*{[^}]*\bbackground-color\s*:\s*rgb\s*\(\s*\d+\s*,\s*\d+\s*,\s*\d+\s*\)\s*;[^}]*}/);
```
The `.color3` element should have a predefined (word) background color.
```js
assert.match(__helpers.removeCssComments(code), /\.color3\s*{[^}]*\bbackground-color\s*:\s*[a-zA-Z]+\s*;[^}]*}/);
```
The `.color4` element should have a HSL background color.
```js
assert.match(__helpers.removeCssComments(code), /\.color4\s*{[^}]*\bbackground-color\s*:\s*hsl\s*\(\s*\d+\s*,\s*\d+%\s*,\s*\d+%\s*\)\s*;[^}]*}/);
```
The `.color5` element should have a background color set.
```js
assert.isNotEmpty(new __helpers.CSSHelp(document).getStyle('.color5').getPropVal('background-color', true));
```
# --seed--
## --seed-contents--
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Colored Boxes</title>
</head>
<body>
</body>
</html>
```
```css
```
# --solutions--
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Colored Boxes</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<h1>Colored Boxes</h1>
<div class="color-grid">
<div class="color-box color1"></div>
<div class="color-box color2"></div>
<div class="color-box color3"></div>
<div class="color-box color4"></div>
<div class="color-box color5"></div>
</div>
</body>
</html>
```
```css
body {
font-family: Arial, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
margin: 0;
padding: 20px;
background-color: #f4f4f4;
}
h1 {
margin-bottom: 20px;
}
.color-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
gap: 10px;
width: 100%;
max-width: 800px;
}
.color-box {
display: flex;
justify-content: center;
align-items: center;
font-weight: bold;
border-radius: 8px;
text-align: center;
width: 100px;
height: 100px;
}
.color1 {
background-color: #33FF57;
}
.color2 {
background-color: rgb(128,0,128);
}
.color3 {
background-color: orange;
}
.color4 {
background-color: hsl(59, 61%, 26%);
}
.color5 {
background-color: red;
}
```

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"blocks": [
{ "dashedName": "lecture-working-with-colors-in-css" },
{ "dashedName": "workshop-colored-markers" },
{ "dashedName": "lab-colored-boxes" },
{ "dashedName": "review-css-colors" },
{ "dashedName": "quiz-css-colors" }
]