Dan Holloran (@grimicorn)

@grimicornSt. Louis, MOJoined May 2026

Senior Full Stack Developer with 14+ years building performant, scalable web applications. Passionate about architecture, mentorship, and finding the right tool for the job.

@grimicornSt. Louis, MOJoined May 2026

Senior Full Stack Developer with 14+ years building performant, scalable web applications. Passionate about architecture, mentorship, and finding the right tool for the job.

Dan Holloran

About

Available for

Dan Holloran's blogs

Recently published

CSS sibling-index() and sibling-count(): Native Staggering Without nth-child Hacks

Animate to height: auto in CSS with interpolate-size and calc-size()

JavaScript Iterator Helpers: Stop Converting to Arrays First

CSS :has() in Practice: The Parent Selector You Can Finally Ship

CSS @function: Reusable Logic Comes Native to the Browser

Dan Holloran

About

Available for

Dan Holloran's blogs

Recently published

CSS sibling-index() and sibling-count(): Native Staggering Without nth-child Hacks

Animate to height: auto in CSS with interpolate-size and calc-size()

JavaScript Iterator Helpers: Stop Converting to Arrays First

CSS :has() in Practice: The Parent Selector You Can Finally Ship

CSS @function: Reusable Logic Comes Native to the Browser

Dan Holloran

About

Available for

Dan Holloran's blogs

Recently published

CSS sibling-index() and sibling-count(): Native Staggering Without nth-child Hacks

Animate to height: auto in CSS with interpolate-size and calc-size()

JavaScript Iterator Helpers: Stop Converting to Arrays First

CSS :has() in Practice: The Parent Selector You Can Finally Ship

CSS @function: Reusable Logic Comes Native to the Browser

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Dan Holloran

About

Available for

Dan Holloran's blogs

Recently published

CSS sibling-index() and sibling-count(): Native Staggering Without nth-child Hacks

Animate to height: auto in CSS with interpolate-size and calc-size()

JavaScript Iterator Helpers: Stop Converting to Arrays First

CSS :has() in Practice: The Parent Selector You Can Finally Ship

CSS @function: Reusable Logic Comes Native to the Browser