1.2: Alerts Link color example
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**Primary Actor**: User

**Scope**: Ngx-bootstrap DEMO / BS version 3&4

**Goal**: Show user alerts with colored links

Main success scenario:
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1. User open Alerts demo page
2. User click on Link color sub-menu
3. User see 4 alerts with types: success, info, warning, danger and each alert have clickable link with class alert-link

Variations:
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2*. User scroll to Link color sub-menu