claude-code - 💡(How to fix) Fix Pin input box to bottom of viewport so long responses don't force constant scrolling [1 comments, 2 participants]

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anthropics/claude-code#54203Fetched 2026-04-29 06:33:32
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Problem

When Claude generates a long streaming response, the viewport auto-scrolls to follow the latest tokens. If the response asks me a question or lists items I need to respond to, I have to scroll up to read them, then scroll back down to type — and as the response keeps streaming, the page keeps jumping. It turns into a constant fight with the scroll position.

This is especially painful when:

  • The response contains clarifying questions that appeared earlier in the message
  • The response lists multiple items I want to address one-by-one in my reply
  • I want to draft my answer while still reading the response

Proposed solution

Pin the input box to a fixed position at the bottom of the viewport. Let the content area above it scroll independently — so I can scroll the response to a comfortable reading position, leave it there, and type my reply without the page jumping every time new tokens arrive.

In other words: input pinned, transcript scrolls under it. The same pattern most chat UIs already use.

Impact

Much smoother review-and-respond flow for long responses. Removes a small but constant friction point that adds up over a day of heavy use.

extent analysis

TL;DR

Pin the input box to a fixed position at the bottom of the viewport to prevent auto-scrolling issues when generating long streaming responses.

Guidance

  • Implement a CSS fix to position the input box absolutely at the bottom of the viewport, allowing the content area to scroll independently.
  • Verify that the input box remains stationary while the content area scrolls by testing with a long streaming response.
  • Consider adding a buffer zone or padding between the input box and the scrolling content area to improve usability.
  • Test the proposed solution with various response lengths and scrolling scenarios to ensure a smooth user experience.

Example

.input-box {
  position: absolute;
  bottom: 0;
  width: 100%;
}

Note: This is a simplified example and may require additional styling to fit the specific application layout.

Notes

The proposed solution assumes a standard chat UI layout and may need adjustments for custom or complex layouts. Additionally, this fix may introduce new issues, such as overlapping content or accessibility concerns, which should be thoroughly tested and addressed.

Recommendation

Apply the proposed workaround by pinning the input box to a fixed position, as it directly addresses the reported issue and improves the user experience.

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