RemixIconEx.Business.mail_open

You're seeing just the function mail_open, go back to RemixIconEx.Business module for more information.
Link to this function

mail_open(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Business.mail_open()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M2.243 6.854L11.49 1.31a1 1 0 0 1 1.029 0l9.238 5.545a.5.5 0 0 1 .243.429V20a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V7.283a.5.5 0 0 1 .243-.429zM4 8.133V19h16V8.132l-7.996-4.8L4 8.132zm8.06 5.565l5.296-4.463 1.288 1.53-6.57 5.537-6.71-5.53 1.272-1.544 5.424 4.47z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}