Christian Heilmann

Building a “shoutout” component in plain HTML/CSS/JavaScript

Wednesday, February 26th, 2025 at 11:15 am

Every Wednesday I host WeAreDevelopers Live on YouTube. Afterwards we cut out short videos to post on social media. What we needed was an obvious “shoutout moment” in the recording to indicate an interesting quote or when we moved on to the next topic – much like a clapper in classic movies to sync audio and video. To this end, I wrote some functionality to show a “cool” and “next” overlay that will make it easier in post production to find the interesting spots. Here’s what that looks like:

The shoutout component in action

You can try the functionality out yourself by checking this codepen, focusing on the browser part and pressing either the `[` or `]` key.
You can also watch the following video to get this article as a step-by-step explanation:

And there is a detailed explanation of the code on the WeAreDevelopers Magazine.

I just love how easy these things are nowadays in HTML, CSS and plain JavaScript.

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Newsletter

Check out the Dev Digest Newsletter I write every week for WeAreDevelopers. Latest issues:

160: Graphs and RAGs explained and VS Code extension hacks Graphs and RAG explained, how AI is reshaping UI and work, how to efficiently use Cursor, VS Code extensions security issues.
159: AI pipelines, 10x faster TypeScript, How to interview How to use LLMs to help you write code and how much electricity does that use? Is your API secure? 10x faster TypeScript thanks to Go!
158: 🕹️ Super Mario AI 🔑 API keys in LLMs 🤙🏾 Vibe Coding Why is AI playing Super Mario? How is hallucinating the least of our worries and what are rules for developing Safety Critical Code?
157: CUDA in Python, Gemini Code Assist and back-dooring LLMs We met with a CUDA expert from NVIDIA about the future of hardware, we look at how AI fails and how to play pong on 140 browser tabs.
156: Enterprise dead, all about Bluesky and React moves on! Learn about Bluesky as a platform, how to build a React App and how to speed up SQL. And play an impossible game in the browser.

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