List Block Indentation Issue in Twenty Fifteen & Twenty Sixteen Themes (Editor Side)

[viralsampat]

Hello Team,

I have noticed that the List block (both ordered and unordered) is not properly indented in the block editor when using the Twenty Fifteen and Twenty Sixteen themes. The indentation appears misaligned or too shallow compared to expected formatting, which may affect readability and visual consistency.

I believe the indentation should be consistent across both the editor and front-end for a better editing experience.

Please review this behavior and consider adjusting the editor styles.

Thank you!

[viralsampat]

Twenty Fifteen Editor

[viralsampat]

Twenty Fifteen Front-end

[viralsampat]

Twenty Fifteen Editor Ordered

[viralsampat]

Twenty Fifteen Front-end Ordered

[viralsampat]

Twenty sixteen Editor

[viralsampat]

Twenty Sixteen Front-end

[viralsampat]

Twenty sixteen Editor Ordered

[viralsampat]

Twenty sixteen Front-end Ordered

[viralsampat]

I have checked above mentioned issue and I have resolved it and added patch. Also, I have attached screenshot after resolved this issue.

[viralsampat]

After resolved twenty fifteen editor:

[viralsampat]

After resolved twenty fifteen front-end:

[viralsampat]

After resolved twenty fifteen editor ordered:

[viralsampat]

After resolved twenty fifteen front-end ordered:

[viralsampat]

I have checked above mentioned issue and I have resolved it for twenty sixteen theme and added patch. Also, I have attached screenshot after resolved this issue.

[viralsampat]

After resolved twenty sixteen editor:

[viralsampat]

After resolved twenty sixteen front-end:

[viralsampat]

After resolved twenty sixteen editor ordered:

[viralsampat]

After resolved twenty sixteen front-end ordered:

[karthikeya01]

Hi @viralsampat

Thank you for raising the ticket. I see a similar issue in Gutenberg ​https://github.com/WordPress/gutenberg/issues/69503

[noruzzaman]

Bug Report

Description

I can reproduce the list block indentation problem in the Twenty Fifteen theme (editor side).

Environment

• WordPress: 7.0-alpha-61215-src
• PHP: 8.2.29
• Server: nginx/1.29.3
• Database: mysqli (Server: 8.4.7 / Client: mysqlnd 8.2.29)
• Browser: Chrome 142.0.0.0
• OS: macOS
• Theme: Twenty Fifteen 4.0
• MU Plugins: None activated
• Plugins:
  • Test Reports 1.2.1

Steps to reproduce

• Activate Twenty Fifteen.

• Create a new post and insert a List block.

• Add a few nested items (1–2 levels).

• Compare indentation in the editor (and optionally the front-end).

Actual Results

• In the editor, list items (ordered and unordered) are insufficiently indented; nested levels appear nearly flush with the left edge, reducing readability and not matching typical list spacing.

• Front-end spacing is different from the editor, leading to inconsistency.

Expected result

• List items should have consistent and readable indentation in the editor, aligned with the theme’s front-end styles.

Screenshots

Editor	Frontend