# How can I make the pseudo-class appear to the left instead of to the right in the MatExpansionModule component of angular material?

I am using this component of angular material:

https://material.angular.io/components/expansion/overview

I would like align the seudoclass to the left instead to the right.

`````` <mat-expansion-panel>
<mat-panel-title>
This is the expansion title
</mat-panel-title>
<mat-panel-description>
This is a summary of the content
</mat-panel-description>