13.8: Tabs Custom class example
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**Primary Actor**: User

**Scope**: Ngx-bootstrap DEMO / BS version 3&4

**Goal**: Show user example of tabs with custom class

Main success scenario:
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1. User opens Tabs demo page
2. User clicks on Custom class sub-menu
3. User see tabs component with 3 tabs, aligned to right and with specific styles
4. By default, the first tab chosen and there is content inside: "Static content"
5. When user clicks on the second tab, it become chosen and there is content inside: "Dynamic content 1"
6. When user clicks on the third tab, it become chosen and there is content inside: "Dynamic content 2"
7. Component and template src should be written with customClass

Variations:
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2*. User scroll to Custom class sub-menu
