<p>The CSS could also be tweaked slightly to match the other controls on the site. Reduce the <code>border-radius</code> to 2px and <code>box-shadow</code> radius to 4px? I've also tried light yellow as the warning background.</p>
<p><a href="https://a248.e.akamai.net/camo.github.com/60a4a0a265766c513b0997bb7b618e6dee867d6a/687474703a2f2f7562756e74756f6e652e636f6d2f303677654867685a556c64314e5544524c745a736a32" target="_blank"><img src="https://a248.e.akamai.net/camo.github.com/60a4a0a265766c513b0997bb7b618e6dee867d6a/687474703a2f2f7562756e74756f6e652e636f6d2f303677654867685a556c64314e5544524c745a736a32" alt="" style="max-width:100%;"></a></p>
<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href='https://github.com/openstreetmap/openstreetmap-website/issues/235#issuecomment-17081131'>view it on GitHub</a>.<img src='https://github.com/notifications/beacon/uTRSc6ihLa7Shf84BpiOpsPrUoF0HgwUXIHQfFP3FABYHiRmkl_WSeWBsLg6n1qc.gif' height='1' width='1'></p>