vaadin-split-layout | Vaadin

The Web Component which allows you to partition a layout into resizeable areas. Part of the Vaadin components.

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Live Demo ↗ | API documentation ↗

<vaadin-split-layout> is a Web Component implementing a split layout for two content elements with a draggable splitter between them, part of the Vaadin components.

  <vaadin-split-layout orientation="vertical">
    <div>First layout content</div>
    <div>Second layout content</div>
  <vaadin-split-layout orientation="vertical">
    <div>Third layout content</div>
    <div>Fourth layout content</div>

Screenshot of vaadin-split-layout


The Vaadin components are distributed as Bower and npm packages. Please note that the version range is the same, as the API has not changed. You should not mix Bower and npm versions in the same application, though.

Unlike the official Polymer Elements, the converted Polymer 3 compatible Vaadin components are only published on npm, not pushed to GitHub repositories.

Polymer 2 and HTML Imports Compatible Version

Install vaadin-split-layout:

bower i vaadin/vaadin-split-layout --save

Once installed, import it in your application:

<link rel="import" href="bower_components/vaadin-split-layout/vaadin-split-layout.html">

Polymer 3 and ES Modules Compatible Version

Install vaadin-split-layout:

npm i @vaadin/vaadin-split-layout --save

Once installed, import it in your application:

import '@vaadin/vaadin-split-layout/vaadin-split-layout.js';

Getting started

Vaadin components use the Lumo theme by default.

To use the Material theme, import the correspondent file from the theme/material folder.

Entry points

  • The component with the Lumo theme:


  • The component with the Material theme:


  • Alias for theme/lumo/vaadin-split-layout.html:


Running demos and tests in browser

  1. Fork the vaadin-split-layout repository and clone it locally.

  2. Make sure you have npm installed.

  3. When in the vaadin-split-layout directory, run npm install and then polymer install --variants to install dependencies.

  4. Run polymer serve, after that you will be able to access:

Note that ports 8000 and 8001 could be different in your environment.

Running tests from the command line

  1. When in the vaadin-split-layout directory, run polymer test

Following the coding style

We are using ESLint for linting JavaScript code. You can check if your code is following our standards by running gulp lint, which will automatically lint all .js files as well as JavaScript snippets inside .html files.


To contribute to the component, please read the guideline first.


Apache License 2.0

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Link to this version
ImportedReleased 20 August 2018Apache License 2.0
Framework Support
Polymer 2.0+
Polymer 3.0+
Also supported:
Polymer 1 (1.1.0)
Browser Compatibility
Install with
npm install @vaadin/vaadin-split-layout"@4.1.0"
Run the above npm command in your project folder. If you have any issues installing, please contact the author.
Release notes - Version 4.1.0


  • @polymer/polymer#^3.0.0
  • @polymer/iron-resizable-behavior#^3.0.0-pre.18
  • @vaadin/vaadin-themable-mixin#^1.2.1
  • @vaadin/vaadin-lumo-styles#^1.1.0
  • @vaadin/vaadin-material-styles#^1.1.0
  • @vaadin/vaadin-element-mixin#^2.0.0