Unusual types of gramophone records did have etched labels as well, with many (if not all) also featuring a little etched picture of Thomas Edison. The Gramophone company etched their logo at the blank side of their single sided records in the early 1900s, in the same way, Some later single sided Red Seal records by Victor had a pattern with the word Victor on it. After having already released both colored vinyl singles and picture discs in the 1980s, Canadian rock artist Bryan Adams issued a 12" single of "Can't Stop This Thing We Started" in autumn 1991, which had the front cover photography
Polymer (library) classes. Custom element definition comprises CSS style, HTML template of the element's local DOM, element properties, lifecycle callbacks and JavaScript methods: import {PolymerElement, html} from '@polymer/polymer/polymer-element.js' class HelloElement extends PolymerElement { static get template() { return html` static get properties() { /* Custom methods */ window.customElements.define(HelloElement.is, HelloElement); The element defined above can be used in HTML code: <hello-element name="World"></hello-element> Polymer (library) Polymer is an open-source JavaScript library for building web applications using polymer Web Components. The library is being developed by Google developers and contributors on GitHub. Modern design principles are implemented as a separate project using Google's Material Design