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The Box widget allows you to arrange various elements within it. Separate and adaptive, the Box widget acts as a building block for the layout. In this demo, you can see how the widget is used to layout different elements on a page.

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import React from 'react'; import Box, { Item } from 'devextreme-react/box'; class App extends React.Component { render() { return ( <React.Fragment> <Box direction="row" width="100%" height={75}> <Item ratio={1}> <div className="rect demo-dark"> ratio = 1 </div> </Item> <Item ratio={2}> <div className="rect demo-light"> ratio = 2 </div> </Item> <Item ratio={1}> <div className="rect demo-dark"> ratio = 1 </div> </Item> </Box> <br /> <Box direction="row" width="100%" height={75}> <Item ratio={0} baseSize={150}> <div className="rect demo-dark"> 150px </div> </Item> <Item ratio={1}> <Box className="demo-light" direction="row" width="100%" height={75} align="center" crossAlign="center"> <Item ratio={0} baseSize={50}> <div className="small"></div> </Item> <Item ratio={0} baseSize={50}> <div className="small"></div> </Item> <Item ratio={0} baseSize={50}> <div className="small"></div> </Item> </Box> </Item> <Item ratio={0} baseSize="10%"> <div className="rect demo-dark"> 10% </div> </Item> </Box> <br /> <Box direction="col" width="100%" height={250}> <Item ratio={1}> <div className="rect demo-dark header"> Header </div> </Item> <Item ratio={2} baseSize={0}> <Box direction="row" width="100%" height={125}> <Item ratio={1}> <div className="rect demo-dark"> Left Bar </div> </Item> <Item ratio={1}> <div className="rect demo-light"> Content </div> </Item> <Item ratio={1}> <div className="rect demo-dark"> Right Bar </div> </Item> </Box> </Item> <Item ratio={1}> <div className="rect demo-dark footer"> Footer </div> </Item> </Box> </React.Fragment> ); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="" /> <link rel="stylesheet" type="text/css" href="" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src=""></script> <script src=""></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
.rect { text-align: center; font-size: 30px; padding-top: 10px; height: 100%; } .demo-light { background: rgba(245, 229, 166, 0.5) } .demo-dark { background: rgba(148, 215, 199, 0.5); } .demo-dark.header { background: rgba(243, 158, 108, 0.5); } .demo-dark.footer { background: rgba(123, 155, 207, 0.5); } .small { height: 50px; border: 1px solid lightgray; }
System.config({ transpiler: 'plugin-babel', meta: { }, paths: { 'npm:': '' }, defaultExtension: 'js', map: { 'react': 'npm:react@16.14.0/umd/react.development.js', 'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js', 'prop-types': 'npm:prop-types@15.7.2/prop-types.js', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@20.2.3', 'devextreme-react': 'npm:devextreme-react@20.2.3', 'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@0.9.5/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.0.0/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@2.0.0/dist/dx-gantt.js', 'preact': 'npm:preact@10.5.5/dist/preact.js', 'preact/hooks': 'npm:preact@10.5.5/hooks/dist/hooks.js', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });