screen_rotation
Copied to Clipboard
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> </head> <body> <div id="app"></div> <script src="https://unpkg.com/react@17.0.2/umd/react.development.js"></script> <script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script> <script type="text/babel"> const { useState } = React function App() { const [selectedValue, setSelectedValue] = useState(''); const handleOptionChange = (event) => { setSelectedValue(event.target.value); }; return ( <div class="container"> <h3>React Js Change color dropdown option on selected</h3> <select value={selectedValue} onChange={handleOptionChange}> <option value="">Select an option</option> <option value="google" className={selectedValue === 'google' ? 'selected-option' : ''}>Google</option> <option value="apple" className={selectedValue === 'apple' ? 'selected-option' : ''}>Apple</option> <option value="amazon" className={selectedValue === 'amazon' ? 'selected-option' : ''}>Amazon</option> <option value="microsoft" className={selectedValue === 'microsoft' ? 'selected-option' : ''}>Microsoft</option> <option value="facebook" className={selectedValue === 'facebook' ? 'selected-option' : ''}>Facebook</option> <option value="alibaba" className={selectedValue === 'alibaba' ? 'selected-option' : ''}>Alibaba</option> <option value="tencent" className={selectedValue === 'tencent' ? 'selected-option' : ''}>Tencent</option> <option value="netflix" className={selectedValue === 'netflix' ? 'selected-option' : ''}>Netflix</option> </select> </div> ); } ReactDOM.render(<App />, document.getElementById("app")); </script> <style> * { box-sizing: border-box; } .container { margin: 0 auto; width: 500px; text-align: center; box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24); padding: 20px; } select { padding: 8px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 4px; } .selected-option { font-weight: bold; color: #000; background-color: #f2f2f2; } </style> </body> </html>