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- Opera Software
Feb 11, 2011
A set of simple HTML pages with various viewport and media query settings, for educational purposes
Simple PageSpeed Insights extension
Generates a topographic view of any web page and visualizes how its different elements are layered on top of each other.
Forked from pwarocks/shinydemos
Shiny Demos is a growing set of demos of the latest Open Web Standards, made by the Opera developer relations team.