Checklist

• I have searched the existing issues for similar issues.
• I added a very descriptive title to this issue.
• I have provided sufficient information below to help reproduce this issue.

Summary

A button gets full width if it has a help/tooltip defined.

Reproducible Code Example

import streamlit as st

st.button("A")  # Has expected width.

st.button("B", help="tooltip")  # Has unexpected 100% width.

Steps To Reproduce

Try the above code example.

Expected Behavior

Button B should have width: auto, just like button A.

Current Behavior

Button B has width: 100%.

Is this a regression?

• Yes, this used to work in a previous version.

Debug info

• Streamlit version: 1.43.0
• Python version: 3.11.9
• Operating System: MacOS
• Browser: Chrome

Additional Information

This is a regression from 1.43.0. It used to work as expected in 1.42.2.