Positive tabindex is error-prone and often inaccessible.
- F44: Failure of Success Criterion 2.4.3 due to using tabindex to create a tab order that does not preserve meaning and operability
- Deque University: Avoid Using Tabindex with Positive Numbers
<%= button_tag "Continue", :tabindex => 3 %><!-- good -->
<%= button_tag "Continue", :tabindex => -1 %>