Change record status: 
Project: 
Introduced in branch: 
8.0.x
Description: 

System base css now uses a more generic .icon-help class to replace the specific .more-help-link a

Themes that depend on this class in their styles are advised to update styles with this new class.

Drupal 7

.more-help-link a {
   background: url(../../../misc/help.png) 0 50% no-repeat; /* LTR */
   padding: 1px 0 1px 20px; /* LTR */
 }
[dir="rtl"] .more-help-link a {
  background-position: 100% 50%;
  padding: 1px 20px 1px 0;
}

Drupal 8

.icon-help {
   background: url(../../../misc/help.png) 0 50% no-repeat; /* LTR */
   padding: 1px 0 1px 20px; /* LTR */
 }
[dir="rtl"] .icon-help {
   background-position: 100% 50%;
   padding: 1px 20px 1px 0;
}

Also instead of using the specific more-help-link in the we will use the already existing more-link to accomplish the same goal.

One example in forum.module

Drupal 7

$container = array(
   '#theme' => 'container',
   '#children' => drupal_render($more_help_link),
   '#attributes' => array(
  'class' => array('more-help-link'),
 ),

Drupal 8

$container = array(
   '#theme' => 'container',
   '#children' => drupal_render($more_help_link),
  '#attributes' => array(
   'class' => array('more-link'),
 ),
Impacts: 
Module developers
Themers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done