A markdown-it plugin to set aspect-ratio of responsive images, make them lazy loading, and to make videos responsive.
I build and share these tools. Beside the componentry things perhaps you want to have a quick look at:
Compose CSS might also be interesting for you, but expect this to change often, and in drastical ways, as it is currently in early stage. I´m trying to find out for myself what is useful to have in a CSS library and how that lib should be structured. ulf.codes is created by using Compose CSS.
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A composable CSS Toolkit to build fast, maintainable, and responsive websites.
Draw SVG stacked area diagrams with a day-based x-axis.
Draw SVG cumulative flow diagrams and predict the anticipated completion of work.
Draw a SVG horizontal gauge.
A sorted map and a sorted set, implemented as a binary tree.
Display and manipulate a breakdown structure of your JIRA Scrum project – even offline and only eventually connected to your JIRA system.
Make the header of your web pages dynamic.
File your workout routines and get a nice graphical overview of your achievements and improvements.
A virtual whiteboard to be shared by multiple people at the same time. Users will be anonymous – so no one needs to sign in.