.md-icon-large{width:3.5rem;height:3.5rem}.md-icon-medium{width:2.5rem;height:2.5rem}.md-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}