You can access topic styles using commands in the Style group, on the Home tab or the Format tab, or from the Topic Styles pane.
To open the Topic Styles pane, click the dialog launcher in the Style group on the Home tab or on the Format tab.
Select one or more topics.
Do one of the following:
In the Topic Styles pane click the style you want to use for the selected topics.
On the Home tab or on the Format tab, in the Styles group, click the Topic Style arrow, then click the style in the gallery.
When you apply a style, any formatting you have already applied is not changed. If you want to topic to reflect only the formatting of the style you should first remove the topic's formatting.
You cannot apply a topic style to override the font and fill colors for topics created or modified in Review Mode.
Select one or more topics.
Do one of the following:
In the Topic Styles pane, under Selected Topic, click Clear topic style.
On the Home tab or on the Format tab, in the Style group, click the Topic Style arrow, then click Clear Topic Style.
The topic will display the default Map Style formatting
If you no longer wish to use a topic style on the map you can delete it.
In the Topic Styles pane click the style's arrow.
Click Select all topics that use this style.