app/views/shared/_flashes.html.erb
<% if flash.any? -%>
<div class="flash-container max-container" id="dismiss-notice">
<% flash.each do |key, value| %>
<div class="flash flash--<%= key %>">
<p class="flash__message"><%= value %></p>
<a href="#dismiss-notice" class="flash__dismiss"><span class="icon icon-close icon-<%= key %>"></span></a>
</div>
<% end %>
</div>
<% end -%>