Screen readers will have trouble with your forms if you don't include a label for every input. An icon used in an alert to convey that it's an error message, with additional .sr-only text to convey this hint to users of assistive technologies. In order for assistive technologies – such as screen readers – to convey that a series of buttons is grouped, an appropriate role attribute needs to be provided. We do not support multiple form-controls in a single input group. Use this section as a general guide to upgrading from v2.x to v3.0. You don't need to include frameborder="0" in your