Make it responsive

[codexico]

The website is hard to read and broken on small screens (and a bit on bigger screens also).

The modifications are:

Small html changes like

• just one h1 per page
• the order of header elements
• Remove the columns on #mainfeature, showing first the text and then the image because they don't fit on small screens

Small css changes like

• Align li images and text
• Fix elements floating above each other

The biggest change was the formatting of the file, it had tabs, 2 space, 4 spaces, break lines before {, or not breaking lines. I used prettier as it is the most used these days.

before	after
mobile before	mobile after
large before	large after

PS: I discovered the project and the layout problems because it appeared in hackernews a few days ago and I oppened using the phone.