# Sérgio Lopes

- **Website:** <https://tatanka.com.br>
- **Primary alias:** `tatanka.com.br`

## Description

Sérgio Lopes is a web developer whose work focuses on front-end development, mobile web experiences, and performance optimization. Through his website and blog, he shares articles, experiments, event reports, book reviews, and practical insights on building for the web. His published topics include responsive design, JavaScript, accessibility, browser technologies, and techniques for improving website speed and user experience.

Lopes is also a speaker and instructor at Caelum and Alura, where he contributes to technology education. His speaking and teaching cover subjects such as mobile web development, front-end practices, and performance. He is the author of A Web Mobile, a book about developing for a world of many devices, which was later released in a revised and expanded second edition. His site also features links to social profiles and an extensive archive of podcast appearances, talks, and writing published on other technology platforms. Together, these activities present a personal brand centered on web development expertise, knowledge sharing, and practical education for people interested in modern web technologies.

## Industries

- 🖥 Computers Electronics and Technology
- 🧪 Science and Education
- 🧪 Education _(under Science and Education)_

## Links

- [facebook](https://facebook.com/sergio.caelum)
- [twitter](https://twitter.com/sergio_caelum)

## Logos & icons

- logo _(primary)_ — PNG, SVG — [download](https://cdn.brandfetch.io/idWwIOk1QK/w/820/h/791/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1793522952123)
- icon _(primary)_ — JPEG — [download](https://cdn.brandfetch.io/idWwIOk1QK/w/400/h/400/theme/dark/icon.jpeg?c=1bxid64Mup7aczewSAYMX&t=1793522952641)

## Colors

| Name | Hex | Theme |
| --- | --- | --- |
| Cerulean Blue | #2958c3 | accent |
| Irish Coffee | #604026 | dark |
| Desert Sand | #efceb6 | light |

## Imagery

- banner _(primary)_ — JPEG — [download](https://cdn.brandfetch.io/idWwIOk1QK/w/1500/h/500/idnk-OL-N2.jpeg?c=1bxid64Mup7aczewSAYMX&t=1793522951760)

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_Source: <https://brandfetch.com/tatanka.com.br>_
_See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._