7.13: Modals directive examples  child modal
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**Primary Actor**: User  

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

**Goal**: Show user Child modal functionality

Main success scenario:
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1. User opens "Modals" demo page
2. User clicks on "Child modal" sub-menu
3. After click on "Open child modal" button, child modal popup is opened
4. When user closes modal popup by click on the cross, modal popup closed

Variations:
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2*. User scrolls to "Child modal"