如何使 CSS 仅应用于 link_to 文本的一部分?

How to make CSS apply to only a portion of the link_to text?

A) 这是有效的 link:

<%= link_to "+ Start a club", account_setup_path(id: :start_a_club) %>

B) 这就是我想要的样子:

<a class="list-group-item" href="#"><i class="fa fa-plus fa-fw hot-pink"></i>&nbsp; Start a club</a>

如何重写 A 以获得正确的 CSS(即“+”为亮粉色)?

谢谢!

<%= link_to account_setup_path(id: :start_a_club), class: 'list-group-item' do %>
  <i class="fa fa-plus fa-fw hot-pink"></i>&nbsp; Start a club
<% end %>