我试过tabindex => '1'and tabindex = '1'，但我无法让标签索引/标签顺序工作。我想从:full_name到:telephone到:address（它的列搞乱了排序）。有任何想法吗？提前致谢。这是我的代码。
=simple_form_for( :application, :url => users_path( application ), :method => :put ) do | f |
.clearfix
.column
=f.input :full_name, label: 'Full Name', placeholder: 'Full Name'
.help-block * please enter your legal name
=f.input :address_1, label: 'Address', placeholder: 'Apartment, Street'
.guardian
=f.input :guardian_full_name, label: 'Guardian Full Name', placeholder: 'Full Name'
.column
=f.input :telephone, label: 'Telephone Number', as: :string
.help-block
=f.input :address_2, label: ' ', placeholder: 'City, Country, Zip/Postcode'
.control-group.boolean
.guardian
=f.input :guardian_email, label: 'Guardian Email Address', placeholder: 'Email Address', as: :string
.column#partner-details-errors
=render 'partner_details_errors', application: application
=f.submit 'Show Contract', class: 'btn btn-primary', data: { 'text' => 'Create Contract', 'disabled-text' => 'Creating ...' }