Add a default style for .btn with harmful actions

[davidbgk]

First of all, thanks for releasing that lib, perfect timing.

I tried to integrate it to a real project today and I miss a class for potential harmful buttons ("Delete" ones for instance). Maybe a default style (red?) to compete with the primary (blue) can be added to fix that?

Thanks,
David

[n1k0]

Agreed.

[loicfrering]

Would definitely be useful!

[davidbgk]

Here is what I did, inspired by github:

    .danger {
      text-shadow: -1px -1px 0 rgba(0, 0, 0, 0.3);
      background: #B33630;
      background: -webkit-gradient(linear,0% 0,0% 100%,from(#DC5F59),to(#B33630));
      background: -moz-linear-gradient(-90deg,#DC5F59,#B33630);
      border-bottom-color: #CD504A;
      color: #fff;
      -webkit-transition: 0;
      -moz-transition: 0;
      transition: 0;
    }
    .danger:hover {
      background: #B33630;
      border-bottom-color: #CD504A;
      color: #fff;
    }

It probably doesn't follow project's standards. I can fork/pull if a core dev think it's a good idea.

[lukeholder]

oops didn't see this thread,

I already made a pull request here #59

would rather the red colors (including the primary blue) are placed into variables in the preboot.less

[davidbgk]

Nice! I'll try that, thanks.

[fat]

Added .danger style with this commit: 0bfce13

thanks guys!