app/views/users/show.html.erb
<% content_for(:title, "#{@user.first_name} #{@user.last_name}") %>
<div class="form-box">
<p>
<strong>Name:</strong>
<%= @user.first_name %> <%= @user.last_name %>
</p>
<p>
<strong>Email:</strong>
<%= @user.email %>
</p>
<p>
<strong>Username:</strong>
<%= @user.username %>
</p>
<%= link_to 'Edit', edit_user_path(@user), class: "btn btn-default btn-sm" %>
<%= link_to 'Cancel', users_path, class: "btn btn-default btn-sm" %>
</div> <!-- form-box -->