Ruby on Rails简单表单水平对齐复选框

Question

如何水平对齐由simpleform生成的复选框？

我尝试了以下操作，但无效：

<%= f.input  :operating_days, :collection=>Date::DAYNAMES, as: :check_boxes, :input_html=>{:checked=>@business.opes},:label=>'OPD',:item_wrapper_class => 'inline'%>


<%= f.input  :operating_days, :collection=>Date::DAYNAMES, as: :check_boxes, :input_html=>{:checked=>@business.opes},:label=>'OPD',:style => 'display: inline-block;'%>

<%= f.input  :operating_days, :collection=>Date::DAYNAMES, as: :check_boxes, :input_html=>{:checked=>@business.opes,:style => 'display: inline-block;'},:label=>'OPD'%>

我正在使用Bootstrap。