codevision 

A singleton element that simplifies announcing text to screen readers.

Makes it easy to make ajax calls and parse the response

A material design toolbar that is easily customizable

Implements a input validator

A material design progress bar

Fits an element inside another element

A header and content wrapper for layout with headers

Enables a custom element to be included in an iron-form

Кросплатформенная библиотека для работы с криптопровайдером АО "НУЦ" KalkanCrypt

Implements an accessible material design menu

A responsive drawer panel

Organizes a set of pages and shows one at a time

Elements for rendering Polymer component documentation.

A material design icon button

An image-displaying element with lots of convenient features

Loads jsonp libraries

A material design-style slider

Prism.js import and syntax highlighting

Turns a raw element definition into beautiful documentation

A material-design styled list item