@font-face {
  font-family: 'text-security';
  src: url('text-security-compat.eot');
  src: url('text-security-compat.eot?#iefix') format('embedded-opentype'),
      url('text-security-compat.woff2') format('woff2'),
      url('text-security-compat.ttf') format('truetype');
}

/*
  Browser detection hack to enable the optimized font in recent versions of Chromium and FF,
  which implement their own font rendering and do support cmap format 13.

  content-visibility is currently only supported in Chrome & Edge version 85+ & Chrome for Android
  -moz-is-html only lets Firefox through
  -webkit-hyphens explicitly excludes Safari in case they later add support for content-visibility
*/
@supports ((content-visibility: visible) or selector(:-moz-is-html)) and (not (-webkit-hyphens: none)) {
  @font-face {
    font-family: 'text-security';
    src: url('text-security.woff2') format('woff2'),
      url('text-security-compat.ttf') format('truetype');
  }
}

@font-face {
  font-family: 'text-security';
  src: url('text-security-compat.eot');
  src: url('text-security-compat.eot?#iefix') format('embedded-opentype'),
      url('text-security-compat.woff2') format('woff2'),
      url('text-security-compat.ttf') format('truetype');
}

/*
  Browser detection hack to enable the optimized font in recent versions of Chromium and FF,
  which implement their own font rendering and do support cmap format 13.

  content-visibility is currently only supported in Chrome & Edge version 85+ & Chrome for Android
  -moz-appearance only lets Firefox through
  -webkit-hyphens explicitly excludes Safari in case they later add support for content-visibility
*/
@supports ((content-visibility: visible) or (-moz-appearance:meter)) and (not (-webkit-hyphens: none)) {
  @font-face {
    font-family: 'text-security';
    src: url('text-security.woff2') format('woff2'),
      url('text-security-compat.ttf') format('truetype');
  }
}

Remove experimental "supports selector" check
Remove experimental "supports selector" check

@supports (selector (..)) is fairly new and experimental CSS feature and
at least some older versions of postcss don't seem to support it,
breaking builds.

Replace the selector check with standard supports check for
-moz-appearance, which should still let only Firefox through.

Fixes #16.
