bevacqua/highlight-redux

Markdown with easy tokenization, a fast highlighter, and a lean HTML sanitizer

Calculate some data item about elements you select, and have it refreshed as you adjust some style in your browser inspector.

Calculate some data item about elements you select (like their widths for example) and record it as data-attribute (displayable via css that way).

Marked with built-in syntax highlighting and input sanitizing that doesn't encode all HTML