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Commit 4a01e01

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lifecycle method in react class based component added and update some codebase
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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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pnpm-debug.log*
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lerna-debug.log*
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node_modules
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dist
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dist-ssr
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*.local
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# Editor directories and files
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.vscode/*
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!.vscode/extensions.json
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.idea
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.DS_Store
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*.suo
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*.ntvs*
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*.njsproj
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*.sln
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*.sw?
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<link rel="icon" type="image/svg+xml" href="/vite.svg" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Vite + React</title>
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</head>
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<body>
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<div id="root"></div>
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<script type="module" src="/src/main.jsx"></script>
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</body>
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</html>
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{
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"name": "01-class-component",
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"private": true,
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"version": "0.0.0",
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"type": "module",
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"scripts": {
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"dev": "vite",
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"build": "vite build",
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"preview": "vite preview"
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},
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"dependencies": {
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"react": "^18.2.0",
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"react-dom": "^18.2.0"
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},
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"devDependencies": {
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"@types/react": "^18.0.26",
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"@types/react-dom": "^18.0.9",
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"@vitejs/plugin-react": "^3.0.0",
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"vite": "^4.0.0"
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}
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}
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Loading[フレーム]
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#root {
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max-width: 1280px;
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margin: 0 auto;
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padding: 2rem;
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text-align: center;
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}
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.logo {
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height: 6em;
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padding: 1.5em;
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will-change: filter;
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}
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.logo:hover {
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filter: drop-shadow(0 0 2em #646cffaa);
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}
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.logo.react:hover {
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filter: drop-shadow(0 0 2em #61dafbaa);
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}
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@keyframes logo-spin {
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from {
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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}
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}
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@media (prefers-reduced-motion: no-preference) {
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a:nth-of-type(2) .logo {
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animation: logo-spin infinite 20s linear;
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}
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}
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.card {
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padding: 2em;
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}
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.read-the-docs {
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color: #888;
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}
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import React from "react"
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import ReactDOM from "react-dom"
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/*
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Challenge:
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1. Convert all 3 components to be class-based
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2. Fix the small bug
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*/
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// #1
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class App extends React.Component {
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render() {
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return (
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<div>
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<Header username="bobziroll" />
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<Greeting />
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</div>
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)
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}
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}
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// #2
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class Header extends React.Component {
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render() {
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return (
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<header>
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<p>Welcome, {this.props.username}!</p>
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</header>
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)
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}
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}
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// #3
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// Hint: any "display logic" can be placed inside the `render`
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// method before the `return` statement
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class Greeting extends React.Component {
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render() {
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const date = new Date()
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const hours = date.getHours()
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let timeOfDay
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if (hours < 12) {
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timeOfDay = "morning"
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} else if (hours >= 12 && hours < 17) {
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timeOfDay = "afternoon"
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} else {
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timeOfDay = "night"
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}
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return (
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<h1>Good {timeOfDay} to you, sir or madam!</h1>
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)
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}
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}
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ReactDOM.render(<App />, document.getElementById("root"))
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// **********************************************************************************************************
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// import React from "react"
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// import ReactDOM from "react-dom"
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// /*
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// Challenge:
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// 1. Convert all 3 components to be class-based
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// 2. Fix the small bug
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// */
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// // #1
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// function App() {
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// return (
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// <div>
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// <Header />
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// <Greeting />
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// </div>
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// )
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// }
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// // #2
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// function Header(props) {
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// return (
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// <header>
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// <p>Welcome, {props.username}!</p>
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// </header>
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// )
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// }
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// // #3
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// // Hint: any "display logic" can be placed inside the `render`
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// // method before the `return` statement
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// function Greeting() {
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// const date = new Date()
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// const hours = date.getHours()
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// let timeOfDay
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// if (hours < 12) {
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// timeOfDay = "morning"
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// } else if (hours >= 12 && hours < 17) {
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// timeOfDay = "afternoon"
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// } else {
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// timeOfDay = "night"
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// }
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// return (
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// <h1>Good {timeOfDay} to you, sir or madam!</h1>
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// )
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// }
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// ReactDOM.render(<App />, document.getElementById("root"))
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Loading[フレーム]
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:root {
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font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
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font-size: 16px;
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line-height: 24px;
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font-weight: 400;
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color-scheme: light dark;
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color: rgba(255, 255, 255, 0.87);
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background-color: #242424;
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font-synthesis: none;
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text-rendering: optimizeLegibility;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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-webkit-text-size-adjust: 100%;
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}
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a {
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font-weight: 500;
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color: #646cff;
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text-decoration: inherit;
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}
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a:hover {
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color: #535bf2;
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}
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body {
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margin: 0;
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display: flex;
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place-items: center;
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min-width: 320px;
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min-height: 100vh;
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}
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h1 {
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font-size: 3.2em;
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line-height: 1.1;
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}
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button {
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border-radius: 8px;
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border: 1px solid transparent;
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padding: 0.6em 1.2em;
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font-size: 1em;
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font-weight: 500;
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font-family: inherit;
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background-color: #1a1a1a;
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cursor: pointer;
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transition: border-color 0.25s;
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}
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button:hover {
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border-color: #646cff;
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}
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button:focus,
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button:focus-visible {
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outline: 4px auto -webkit-focus-ring-color;
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}
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@media (prefers-color-scheme: light) {
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:root {
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color: #213547;
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background-color: #ffffff;
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}
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a:hover {
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color: #747bff;
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}
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button {
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background-color: #f9f9f9;
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}
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}
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import React from 'react'
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import ReactDOM from 'react-dom/client'
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import App from './App'
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import './index.css'
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ReactDOM.createRoot(document.getElementById('root')).render(
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<React.StrictMode>
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<App />
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</React.StrictMode>,
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)
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import { defineConfig } from 'vite'
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import react from '@vitejs/plugin-react'
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// https://vitejs.dev/config/
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export default defineConfig({
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plugins: [react()],
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})

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