I\'m trying to put an input, a button and a select in the same line using bootstrap/css, but the select, depending on its content size, is going to the next lin
Problem with form-inline is that it's applying width:auto; on the select and as in your scenario content is large and enough space is not available in the first line so it's starting from the new line. Instead of using form-inline you can restructure your markup like that: