Bug, feature request, or proposal:

Bugs

What is the expected behavior?

Whatever placeholder text it is, floating placeholder (md-input-placeholder) should be rendered without y-scrollbar on IE browser.

What is the current behavior?

some character-set (such as Korean)'s line-height can be bigger than md-input-placeholder height.

What are the steps to reproduce?

visit the plnkr.co on IE 11 browser windows 10
http://plnkr.co/edit/Z0XDCASXPMhCj07KB1Nf?p=preview

What is the use-case or motivation for changing an existing behavior?

Changing supported language of website to Korean.

Which versions of Angular, Material, OS, browsers are affected?

Angular material - master branch and beta.2 branch
Angular - 4.0.0-rc.2
OS: Windows 10
browser: IE 11

Is there anything else we should know?