Fast and easy way to test your responsive design in multiple viewports

LiveStyle — the first bi-directional real-time edit tool for CSS, LESS and SCSS.

Generate Emmet snippet from a selected DOM element in the sidebar panel

Automatically adds Emmet capabilites to all textareas

Extends the Developer Tools, adding a sidebar that helps to use emmet abbreviations and inject code into selected DOM element.

Adicona o Emmet (https://emmet.io) nas textareas