By default, the platform does not have this option. You can use the following CSS code.
Please follow the steps below:
1. Go to BuddyBoss > Theme Options
2. Under Custom Codes, enable CSS
3. Append the following:
.activity .activity-header p a { font-size: 16px; }
.activity .activity-header .activity-date a { font-size: 12px; }
4. Save changes.
