Merge pull request #37 from pgle/icons

Fix carousel styling
Merge pull request #38 from pgle/khan_slide

Add few more slides
Fix slide alignment issue
Move styles related to slides standalone
Remove dummy slides
Merge pull request #39 from mkiedys/slider

Fix slide alignment issue
Reverse order of reset and main CSS
Merge pull request #40 from mkiedys/reset

Reverse order of reset and main CSS
Add learn online slides.
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Add slides for learn in group section