---
title: "Breaking: #64102 - Move t3-table and t3-button to bootstrap"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-64102"
source: "Changelog/7.1/Breaking-64102-MoveT3TableAndT3ButtonToBootstrap.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #64102 - Move t3-table and t3-button to bootstrap

See [forge#64102](https://forge.typo3.org/issues/64102)

## Description

In transition to full bootstrap coverage and streamlining the backend, we are dropping the support for the CSS classes
.t3-table and .t3-button. We are replacing them with the corresponding bootstrap CSS classes for tables and buttons.
See [http://getbootstrap.com/css/#tables](http://getbootstrap.com/css/#tables) and [http://getbootstrap.com/css/#buttons](http://getbootstrap.com/css/#buttons) for more details.

## Impact

Custom implementations of tables and buttons in backend modules will lose the TYPO3 default styling.

## Affected installations

Extensions that provide custom backend modules that are using the css classes `.t3-table` or `.t3-button`.

## Migration

For tables we recommend the usage of the CSS class combination `table table-striped table-hover` instead of `t3-table`.

For buttons we recommend the usage of the CSS class combination `btn btn-default` instead of `t3-button`.