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freeCodeCamp/curriculum/challenges/english/14-responsive-web-design-22/learn-css-animation-by-building-a-ferris-wheel/6169b284950e171d8d0bb16a.md

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feat(curriculum): css ferris wheel (#43460) * feat: initial infra * feat: initial step breakdown * feat: expand instructions * feat: write tests! * chore: apply shaun's review suggestions Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * chore: more tweaks * chore: ferris → Ferris * chore: apply shaun's review suggestions Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * fix: no lang * chore: fix lint issues Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
2021-11-09 10:03:21 -08:00
---
id: 6169b284950e171d8d0bb16a
title: Step 29
challengeType: 0
dashedName: step-29
---
# --description--
Finally, create a new `75%` selector between your `50%` and `100%` selectors. Give this new selector a `background-color` property set to `yellow.`
With that, your animation is much smoother and your Ferris wheel is complete.
# --hints--
You should create a new `75%` selector in your `@keyframes cabins` rule.
```js
const rules = new __helpers.CSSHelp(document).getCSSRules('keyframes')?.[1]?.cssRules;
assert(rules?.[0]?.keyText === '75%' || rules?.[1]?.keyText === '75%' || rules?.[2]?.keyText === '75%' || rules?.[3]?.keyText === '75%' || rules?.[4]?.keyText === '75%');
```
Your `75%` selector should be between your `50%` and `100%` selectors.
```js
assert(new __helpers.CSSHelp(document).getCSSRules('keyframes')?.[1]?.cssRules?.[3]?.keyText === '75%');
```
Your `75%` selector should have a `background-color` property set to `yellow`.
```js
assert(new __helpers.CSSHelp(document).getCSSRules('keyframes')?.[1]?.cssRules?.[3]?.style?.backgroundColor === 'yellow');
```
# --seed--
## --seed-contents--
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
chore(curriculum): standardise titles for rwd-beta (#45398) * chore(curriculum): accessibility-quiz * chore(curriculum): cafe-menu * chore(curriculum): ferris-wheel * chore(curriculum): fix ferris-wheel tests * chore(curriculum): colored-markers * chore(curriculum): photo-gallery * chore(curriculum): magazine * chore(curriculum): penguin * chore(curriculum): city-skyline * chore(curriculum): registration-form * chore(curriculum): picasso-painting * chore(curriculum): balance-sheet * chore(curriculum): piano * chore(curriculum): rothko-painting * fix: title min 15 chars
2022-03-14 15:54:43 +00:00
<title>Ferris Wheel</title>
feat(curriculum): css ferris wheel (#43460) * feat: initial infra * feat: initial step breakdown * feat: expand instructions * feat: write tests! * chore: apply shaun's review suggestions Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * chore: more tweaks * chore: ferris → Ferris * chore: apply shaun's review suggestions Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * fix: no lang * chore: fix lint issues Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
2021-11-09 10:03:21 -08:00
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div class="wheel">
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
</div>
</body>
</html>
```
```css
.wheel {
border: 2px solid black;
border-radius: 50%;
margin-left: 50px;
position: absolute;
height: 55vw;
width: 55vw;
max-width: 500px;
max-height: 500px;
animation-name: wheel;
animation-duration: 10s;
animation-iteration-count: infinite;
animation-timing-function: linear;
}
.line {
background-color: black;
width: 50%;
height: 2px;
position: absolute;
top: 50%;
left: 50%;
transform-origin: 0% 0%;
}
.line:nth-of-type(2) {
transform: rotate(60deg);
}
.line:nth-of-type(3) {
transform: rotate(120deg);
}
.line:nth-of-type(4) {
transform: rotate(180deg);
}
.line:nth-of-type(5) {
transform: rotate(240deg);
}
.line:nth-of-type(6) {
transform: rotate(300deg);
}
.cabin {
background-color: red;
width: 20%;
height: 20%;
position: absolute;
border: 2px solid;
transform-origin: 50% 0%;
animation: cabins 10s ease-in-out infinite;
}
.cabin:nth-of-type(1) {
right: -8.5%;
top: 50%;
}
.cabin:nth-of-type(2) {
right: 17%;
top: 93.5%;
}
.cabin:nth-of-type(3) {
right: 67%;
top: 93.5%;
}
.cabin:nth-of-type(4) {
left: -8.5%;
top: 50%;
}
.cabin:nth-of-type(5) {
left: 17%;
top: 7%;
}
.cabin:nth-of-type(6) {
right: 17%;
top: 7%;
}
@keyframes wheel {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
--fcc-editable-region--
@keyframes cabins {
0% {
transform: rotate(0deg);
}
25% {
background-color: yellow;
}
50% {
background-color: purple;
}
100% {
transform: rotate(-360deg);
}
}
--fcc-editable-region--
```
fix(curriculum): add missing solutions to last step of practice projects (#44544)
2021-12-21 17:03:09 -06:00
## --solutions--
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
chore(curriculum): standardise titles for rwd-beta (#45398) * chore(curriculum): accessibility-quiz * chore(curriculum): cafe-menu * chore(curriculum): ferris-wheel * chore(curriculum): fix ferris-wheel tests * chore(curriculum): colored-markers * chore(curriculum): photo-gallery * chore(curriculum): magazine * chore(curriculum): penguin * chore(curriculum): city-skyline * chore(curriculum): registration-form * chore(curriculum): picasso-painting * chore(curriculum): balance-sheet * chore(curriculum): piano * chore(curriculum): rothko-painting * fix: title min 15 chars
2022-03-14 15:54:43 +00:00
<title>Ferris Wheel</title>
fix(curriculum): add missing solutions to last step of practice projects (#44544)
2021-12-21 17:03:09 -06:00
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div class="wheel">
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<span class="line"></span>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
<div class="cabin"></div>
</div>
</body>
</html>
```
```css
.wheel {
border: 2px solid black;
border-radius: 50%;
margin-left: 50px;
position: absolute;
height: 55vw;
width: 55vw;
max-width: 500px;
max-height: 500px;
animation-name: wheel;
animation-duration: 10s;
animation-iteration-count: infinite;
animation-timing-function: linear;
}
.line {
background-color: black;
width: 50%;
height: 2px;
position: absolute;
top: 50%;
left: 50%;
transform-origin: 0% 0%;
}
.line:nth-of-type(2) {
transform: rotate(60deg);
}
.line:nth-of-type(3) {
transform: rotate(120deg);
}
.line:nth-of-type(4) {
transform: rotate(180deg);
}
.line:nth-of-type(5) {
transform: rotate(240deg);
}
.line:nth-of-type(6) {
transform: rotate(300deg);
}
.cabin {
background-color: red;
width: 20%;
height: 20%;
position: absolute;
border: 2px solid;
transform-origin: 50% 0%;
animation: cabins 10s ease-in-out infinite;
}
.cabin:nth-of-type(1) {
right: -8.5%;
top: 50%;
}
.cabin:nth-of-type(2) {
right: 17%;
top: 93.5%;
}
.cabin:nth-of-type(3) {
right: 67%;
top: 93.5%;
}
.cabin:nth-of-type(4) {
left: -8.5%;
top: 50%;
}
.cabin:nth-of-type(5) {
left: 17%;
top: 7%;
}
.cabin:nth-of-type(6) {
right: 17%;
top: 7%;
}
@keyframes wheel {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
@keyframes cabins {
0% {
transform: rotate(0deg);
}
25% {
background-color: yellow;
}
50% {
background-color: purple;
}
75% {
background-color: yellow;
}
100% {
transform: rotate(-360deg);
}
}
```
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