#### Bug, feature request, or proposal: Seems the underline is jumping on mat-form-field on focusin and focusout or the thickness is not correct. It looks wierd. #### What is the current behavior?  #### What are the steps to reproduce? Look at [Material Demo Site](https://material.angular.io/components/form-field/overview) in Edge Browser #### Which versions of Angular, Material, OS, TypeScript, browsers are affected? MSEdge: 41.16299.15.0 Material: 5.0.0-rc0-3ca801a