bootstrap 3 input-group 100% width

Question

In the bootstrap documentation, they have input groups that span 100% width with no additional markup: http://getbootstrap.com/components/#input-groups

Answer 1

Adding width: 1% to the input element's sibling fixes this:

.clear { width: 1%; display: table-cell; }

See http://jsfiddle.net/Wexcode/B9LMN/2/