.thumbnails jumping (transition, no border, no padding) if a <form> appears previously.

Created by: endcoreAK

Hey there, I recently found a bug wich appears on the latest Chrome running on Windows 7. Firefox, Opera, Safari and IE works fine. A friend of mine (using Mac) also got this bug on his Safari with OSX (and Chrome too), otherwise on his iPhone 5 with Safari there aren't any Problems. And on my Android Phone (Galaxy S4 with Chrome) I see the same bug.

If I rename the form-Tag to div for example, everthing works fine. Also if I host this code with jsfiddle or codepen, I can't reproduce this error, so I uploaded a demo file: http://stuff.akcl.de/bt-thumbnail-bug/

Tests without any result

• Removing the Input- and Button-Tag
• Removing the classes navbar-form navbar-right
• form { display:none !important; margin:0 !important; } /* user agent stylesheet */
• *, :before, :after { box-sizing: inherit !important; }

Summary

Bug