We finally learned to center a div, then browsers added sidebars
The process of centering a div has become simpler with modern browsers, but issues can arise when sidebars are present. The author discovered that using JavaScript to calculate the width of the browser window and webview can help adjust the positioning of the div. However, this solution can be complicated by the presence of DevTools and varying browser UI layouts.
- ▪Centering a div is now easier with modern browsers using display: grid and place-items: center.
- ▪The presence of sidebars can affect the centering of a div, requiring adjustments to be made.
- ▪JavaScript can be used to calculate the width of the browser window and webview to adjust the positioning of the div.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | seg6 |
| Canonical URL | https://seg6.space/posts/center-div/ |
| Publication time | Tue, 04 Aug 2026 22:24:00 +0000 |
| Retrieval time | 2026-08-04T23:15:46.861Z |
| Last seen | 2026-08-04T23:15:46.861Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | p9qKGmVvxf8J · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Centering a div used to require this little ritual: .thing { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } These days, it is almost disappointingly easy: body { display: grid; min-height: 100dvh; place-items: center; } I used that for the .site div you’re reading. It looked centered until I opened it in a browser with the sidebar visible. The .site div was still perfectly centered, just inside the wrong rectangle. I figured the fix would be simple enough: JavaScript knows the width of both the webview and the browser window.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at seg6.
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