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Elements-x is a collection of custom-built custom elements, like html tags, independent from frameworks(Angular, React, Vue or any), and look-and-feel of components are customizable by overriding css.
$ npm install elements-X -D
import 'elements-x
<x-clock run></x-clock>
<head> <script src="https://unpkg.com/elements-x"></script> </head> <body> <x-clock run></x-clock> </body>