Add timestamp parameter to example.html
Tab-template: Add icon to each tab headline as a pseudo-element
Upload images for social links in info tab
Set flexible layout to active tabs per default

- Include flexbox-layout- mixin to class .tab.active
- Add icon as pseudo-element before the main tab headline
- Fix margins of tab-header and tab-headline
- Add classes .main and .section elements to flex items in tab container
- Clean up code
Create UI component: Flat button with rounded corners

- Create new mixin for flat button
- Create new mixin for all 4 rounded corners
- Set font-size variable for button labels
- Clean up code: Delete vendor prefixes in scss
Adjust font-weight in headlines and em-elements
Delete unused imports in podlove-web-player.scss
Add mixins "row", "container", "column"
Refactor flexbox mixin

- Include flexbox mixin wherever needed
Refactor module info.js

- Indent code in a more readable way
- Add date object to render a publication date
- Add div in info-tab-footer with social links
Styling for info tab

- Apply flexbox layout to elements in info tab
- Style buton and footer
- Fix cross-browser issues