Add CSS-classes to the formats-menu?

Hi,

Can I add my own CSS-classes to the format-menu in the post editing?

I mean the menu on this image:
https://www.dropbox.com/s/6qrwvogbiyalver/text-format.png?dl=0

/ Isak

Hi again,

I’ve now found the file “td-config.php” och added some new styles to it. The styles shows correctly in the Format-menu and it ads the correct classes to the content, but the CSS don’t affect the content that it’s applied to.

Any ideas of what’s wrong?

Example ‘three columns’

In td_config:
// columns text
td_api_tinymce_formats::add('td_text_columns',
array(
'title' => 'Text columns'
));
td_api_tinymce_formats::add('td_text_columns_0',
array(
'parent_id' => 'td_text_columns',
'title' => 'two columns',
'block' => 'div',
'classes' => 'td_text_columns_two_cols',
'wrapper' => true,
));
td_api_tinymce_formats::add('td_text_columns_1',
array(
'parent_id' => 'td_text_columns',
'title' => 'three columns',
'block' => 'div',
'classes' => 'td_text_columns_three_cols',
'wrapper' => true,
));

In style.css:
.td_text_columns_three_cols {
-webkit-column-count: 3;
-moz-column-count: 3;
column-count: 3;
-webkit-column-gap: 40px;
-moz-column-gap: 40px;
column-gap: 40px;
-webkit-column-rule-style: solid;
-moz-column-rule-style: solid;
column-rule-style: solid;
-webkit-column-rule-width: 1px;
-moz-column-rule-width: 1px;
column-rule-width: 1px;
-webkit-column-rule-color: #e9e9e9;
-moz-column-rule-color: #e9e9e9;
column-rule-color: #e9e9e9;
margin-bottom: 26px;
}

/ Isak