# CSS code is invisible

**URL:** <https://talk.observablehq.com/t/css-code-is-invisible/10828>\
**Category:** Feedback\
**Created:** [September 8, 2026, 12:38pm UTC](https://talk.observablehq.com/t/css-code-is-invisible/10828 "2026-09-08T12:38:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![neocarto](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/neocarto/32/6554_2.png) [@neocarto](https://talk.observablehq.com/u/neocarto)\
**Post date:** [September 8, 2026, 12:38pm UTC](https://talk.observablehq.com/t/css-code-is-invisible/10828/1 "2026-09-08T12:38:50Z")

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In this notebook, I created an HTML cell containing some CSS styling.

[https://observablehq.com/d/8476de4126c83cb4](https://observablehq.com/d/8476de4126c83cb4)

The CSS is applied to the page, but the cell itself completely disappears.

The code can still be viewed using:

> **[CSS](https://old.observablehq.com/d/8476de4126c83cb4)**
>
> The stylesheet works, but the code disappears. H2 style

---

<div class="post-metadata">

**Author:** ![mbostock](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/mbostock/32/9_2.png) [@mbostock](https://talk.observablehq.com/u/mbostock)\
**Post date:** [September 8, 2026, 4:48pm UTC](https://talk.observablehq.com/t/css-code-is-invisible/10828/2 "2026-09-08T16:48:06Z")

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I’ve changed this to show `<empty>`; see [related discussion](https://talk.observablehq.com/t/how-to-show-unpinned-cells-observable-2/10832/2).