CSS scrollbar-gutter: Stop Layout Shift When the Scrollbar Appears

Stop your layout from jumping sideways when the scrollbar appears. One line of CSS, scrollbar-gutter: stable, reserves the space ahead of time.

https://markodenic.com/snippets/css/scrollbar-gutter/

JavaScript typeof Operator: Every Result and Its Quirks

How typeof works in JavaScript: the 8 possible results, the famous quirks (typeof null, arrays, NaN), checking for undefined safely, and the right way to test for arrays, null and objects.

https://markodenic.com/javascript-typeof/

How to Serve Markdown to AI Agents (and Why)

Serve clean Markdown to AI agents with .md URLs and Accept: text/markdown content negotiation. Tested Node code, plus the caching trap to avoid.

https://markodenic.com/serve-markdown-to-ai-agents/

Striped Backgrounds in CSS (Horizontal, Vertical, Diagonal)

Create striped backgrounds with pure CSS gradients: horizontal, vertical and diagonal stripes, pinstripes, zebra-striped tables and an animated striped progress bar. Copy-paste examples.

https://markodenic.com/css-striped-background/

How to Add a Seasonal Theme to Your Website (Halloween Example)

Add a Halloween or holiday theme that turns itself on and off by date: a server-side date check, a CSS variable palette swap, decorations that stay out of the way, and reduced-motion support. With a live demo.

https://markodenic.com/seasonal-website-theme/

How to Make Text Italic in HTML (i vs em vs CSS)

Make text italic in HTML: when to use em, when to use i, the other tags that render in italics, the CSS font-style property, and how to remove italics. With examples.

https://markodenic.com/html-italics/

CSS Blur: Blur Text, Images and Backgrounds

Everything you can blur with CSS: images and elements with filter: blur(), frosted glass with backdrop-filter, blurred text and spoilers, and blurred background images without blurry edges.

https://markodenic.com/css-blur/

JavaScript Modulo (%): Remainder Operator Explained

How the % operator works in JavaScript: remainders, even and odd checks, why negative numbers give negative results, a true modulo function, and practical uses like wrapping indexes and time formatting.

https://markodenic.com/javascript-modulo/

Change Placeholder Color in CSS (::placeholder)

Change the placeholder text color with the ::placeholder pseudo-element: inputs and textareas, opacity in Firefox, focus states, and keeping it readable.

https://markodenic.com/snippets/css/placeholder-color/

CSS transform: translate, rotate, scale and transform-origin

How CSS transform works: translate, rotate, scale and skew, the individual translate/rotate/scale properties, why order matters, transform-origin, 3D transforms, and smooth animations.

https://markodenic.com/css-transform/

Agent memory is the new hot topic. Check this one out:
https://www.linkedin.com/feed/update/urn:li:activity:7523707481815019520/

How to Revert to a Previous Commit in Git (Safely)

Go back to a previous commit in Git: git revert for pushed work, git reset --soft, --mixed and --hard for local commits, restoring one file, reverting merges, and recovering from mistakes with reflog.

https://markodenic.com/git-revert-to-commit/

Disabled Button Styles in CSS (:disabled)

Style disabled buttons with CSS: the :disabled pseudo-class, cursor and opacity, aria-disabled vs disabled, loading buttons, and accessible disabled states.

https://markodenic.com/snippets/css/disabled-button/

How to Style an hr (Horizontal Rule) in CSS

Style the HTML hr element with CSS: change its color and thickness, make dashed, dotted and gradient lines, add text or an icon in the middle, and use it correctly as a thematic break.

https://markodenic.com/css-hr/

This si a free webinar on the state of developer experience in 2026. The line up is amazing.
Check it out!
https://x.com/denicmarko/status/2118676854689206622

How to Install Git on Windows (Step by Step)

Install Git on Windows with winget or the installer, pick the right setup options, configure your name and email, connect to GitHub with SSH, and keep Git up to date.

https://markodenic.com/install-git-on-windows/

EmDash CMS Tutorial: Build Your First Site

Get started with EmDash, Cloudflare's open-source TypeScript CMS built on Astro: create a site, publish a post, query content, deploy, and import from WordPress.

https://markodenic.com/emdash-cms/