Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

@import "compass/css3/box-sizing";

$m-form-input-types: (
  'text',
  'password',
  'email',
  'url',
  'date',
  'month',
  'time',
  'datetime',
  'datetime-local',
  'week',
  'number',
  'search',
  'tel',
  'color'
);
$m-form-input-selectors: ();
@each $item in $m-form-input-types {
  $m-form-input-selectors: $m-form-input-selectors, unquote('input[type="#{$item}"]');
}
$m-form-input-selectors: $m-form-input-selectors, unquote('select');
$m-form-input-selectors: $m-form-input-selectors, unquote('textarea');

.m-form {
    & #{$m-form-input-selectors} {
        background: #f3f3f3;
        border: 1px solid #d3d3d3;
        border-radius: 4px;
        @include box-sizing('border-box');
    }
}

SassMeister-output.css

.m-form input[type="text"], .m-form input[type="password"], .m-form input[type="email"], .m-form input[type="url"], .m-form input[type="date"], .m-form input[type="month"], .m-form input[type="time"], .m-form input[type="datetime"], .m-form input[type="datetime-local"], .m-form input[type="week"], .m-form input[type="number"], .m-form input[type="search"], .m-form input[type="tel"], .m-form input[type="color"], .m-form select, .m-form textarea {
  background: #f3f3f3;
  border: 1px solid #d3d3d3;
  border-radius: 4px;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}