v1.0.0-alpha.1

From v1.0.0-alpha.1, Mobi.css will not have breaking changes unless there are some important reasons.

Breaking changes

• Remove class label, you should use flex-middle instead

New features

• Add flex-left, flex-center, flex-right, flex-top, flex-middle, flex-bottom (revert #10)

Other changes

• Fixed font-family of pre code in Android
• Update (add white shadow to black arrow-down image) the background-image of select to enhance the image when use a dark theme
• Add two browsers support: last 5 UCAndroid versions and last 3 Edge versions
• Changed website DNS, which cause some problem that some people cannot access the site (#16, #17), solved by adding a mirror site http://getmobicss.xcatliu.com/, will deprecate it when DNS cache is cleared
• Published site to both GitHub pages and Coding pages, which help Chinese people view this page without the need of climbing over the GFW