By joachim on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
7.x
Introduced in version: 
7.0-unstable-5
Issue links: 
https://www.drupal.org/node/371231
Description: 

Drupal 6's “clear-block” class was a Drupalism for functionality which is better known by the CSS Community as “clearfix.” Furthermore, using the “block” term was confusing as it is not dependent on Drupal’s block system. The clear-block class has been renamed to clearfix in Drupal 7.

7.x

<div class="clearfix">

6.x 

<div class="clear-block">
Impacts: 
Module developers
Themers