Es2015 Custom Element A11y

--- layout: example.html title: Custom map element with accessible map shortdesc: Example of a custom element with an accessible map, which can gain focus and allows keyboard based navigation. docs: > The example creates and registers a custom element, ol-map, which contains an accessible OpenLayers map. Therefore the ol-map element has its tabindex attribute set to "0". So the map can gain the focus and thus allows map navigation with the keyboard. Use the + and - keys to zoom in and out and the arrow keys to pan the map. **Note:** Only works in browsers that supports ShadowRoot. tags: "es2015, web-component, custom-element, shadow-dom, accessibility, tabindex" ---