//** Default `.form-control` height
$input-height-base: 2em !default;
//** Large `.form-control` height
$input-height-large: (ceil($font-size-large * $line-height-large)+1) !default;
//** Small `.form-control` height
$input-height-small: (floor($font-size-small * $line-height-small)) !default;