Note: Below is the original page from the Bootlint documentation, some of the info here might not apply to Bootlint-NG!

It's best-practice to always set an explicit type on <input>s. If an <input> lacks a type attribute, it defaults to being a type="text".

Bootstrap will only fully style <input>s which have a valid type attribute.

Wrong:

<input value="Something">

Right:

<input type="text" value="Something">