Do not waste your energy by defining custom CSS classes to handle Responsive Web Design!
Use existing frameworks like Twitter's Bootstrap:
http://getbootstrap.com/arrow-up-right
... or even better, go Material!
https://www.google.com/design/spec/material-design/introduction.htmlarrow-up-right
https://material.angular.ioarrow-up-right
https://github.com/angular/flex-layoutarrow-up-right
https://zingchart.github.io/zingtouch/arrow-up-right
Last updated 7 years ago