Bootstrap/docs/assets/css/bootstrap-responsive.css

.hidden {
  display: none;
  visibility: hidden;
}
@media (max-width: 480px) {
  .form-horizontal .control-group > label {
    float: none;
    width: auto;
    padding-top: 0;
    text-align: left;
  }
  .form-horizontal .controls {
    margin-left: 0;
  }
  .form-horizontal .control-list {
    padding-top: 0;
  }
  .form-horizontal .form-actions {
    padding-left: 0;
  }
  .modal {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    width: auto;
    margin: 0;
  }
  .modal.fade.in {
    top: auto;
  }
  .modal-header .close {
    padding: 10px;
  }
}
@media (max-width: 768px) {
  .container {
    width: auto;
    padding: 0 20px;
  }
  .row {
    margin-left: 0;
  }
  .row > [class*="span"] {
    float: none;
    display: block;
    width: auto;
    margin: 0;
  }
}
@media (min-width: 768px) and (max-width: 940px) {
  .container {
    width: 748px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .span1 {
    width: 44px;
  }
  .span2 {
    width: 108px;
  }
  .span3 {
    width: 172px;
  }
  .span4 {
    width: 236px;
  }
  .span5 {
    width: 300px;
  }
  .span6 {
    width: 364px;
  }
  .span7 {
    width: 428px;
  }
  .span8 {
    width: 492px;
  }
  .span9 {
    width: 556px;
  }
  .span10 {
    width: 620px;
  }
  .span11 {
    width: 684px;
  }
  .span12 {
    width: 748px;
  }
  .offset1 {
    margin-left: 84px;
  }
  .offset2 {
    margin-left: 148px;
  }
  .offset3 {
    margin-left: 212px;
  }
  .offset4 {
    margin-left: 276px;
  }
  .offset5 {
    margin-left: 340px;
  }
  .offset6 {
    margin-left: 404px;
  }
  .offset7 {
    margin-left: 468px;
  }
  .offset8 {
    margin-left: 532px;
  }
  .offset9 {
    margin-left: 596px;
  }
  .offset10 {
    margin-left: 660px;
  }
  .offset11 {
    margin-left: 724px;
  }
  .offset12 {
    margin-left: 788px;
  }
}
@media (max-width: 940px) {
  body {
    padding-top: 0;
  }
  .navbar-fixed-top {
    position: static;
    margin-bottom: 36px;
  }
  .navbar-inner {
    padding: 10px;
    background-image: none;
  }
  .navbar .container {
    padding: 0;
  }
  .navbar .brand {
    float: none;
    display: block;
    padding-left: 15px;
    padding-right: 15px;
    margin: 0;
  }
  .navbar .nav {
    float: none;
    margin: 9px 0;
  }
  .navbar .nav > li {
    float: none;
  }
  .navbar .nav > li > a {
    margin-bottom: 2px;
  }
  .navbar .nav > .vertical-divider {
    display: none;
  }
  .navbar .nav > li > a, .navbar .dropdown-menu a {
    padding: 6px 15px;
    font-weight: bold;
    color: #999999;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    border-radius: 3px;
  }
  .navbar .dropdown-menu li + li a {
    margin-bottom: 2px;
  }
  .navbar .nav > li > a:hover, .navbar .dropdown-menu a:hover {
    background-color: #222222;
  }
  .navbar .dropdown-menu {
    position: static;
    display: block;
    float: none;
    max-width: none;
    margin: 0 15px;
    padding: 0;
    background-color: transparent;
    border: none;
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    border-radius: 0;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
  }
  .navbar .dropdown-menu:before, .navbar .dropdown-menu:after {
    display: none;
  }
  .navbar .dropdown-menu .divider {
    display: none;
  }
  .navbar-form, .navbar-search {
    float: none;
    padding: 9px 15px;
    margin: 9px 0;
    border-top: 1px solid #222222;
    border-bottom: 1px solid #222222;
    -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.1);
    -moz-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.1);
  }
  .navbar .nav.pull-right {
    float: none;
    margin-left: 0;
  }
  .navbar-static .navbar-inner {
    padding-left: 10px;
    padding-right: 10px;
  }
}
/*
@media (min-width: 1210px) {

  // Reset grid variables
  @gridColumns:       12;
  @gridColumnWidth:   70px;
  @gridGutterWidth:   30px;
  @siteWidth:         1170px;

  // Bring grid mixins to recalculate widths
  .columns(@columns: 1) {
    width: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1));
  }
  .offset(@columns: 1) {
    margin-left: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1)) + (@gridGutterWidth * 2);
  }

  .container {
    width: @siteWidth;
  }
  .row {
    margin-left: @gridGutterWidth * -1;
  }
  [class*="span"] {
    margin-left: @gridGutterWidth;
  }

  // Default columns
  .span1     { .columns(1); }
  .span2     { .columns(2); }
  .span3     { .columns(3); }
  .span4     { .columns(4); }
  .span5     { .columns(5); }
  .span6     { .columns(6); }
  .span7     { .columns(7); }
  .span8     { .columns(8); }
  .span9     { .columns(9); }
  .span10    { .columns(10); }
  .span11    { .columns(11); }
  .span12    { .columns(12); }

  // Offset column options
  .offset1   { .offset(1); }
  .offset2   { .offset(2); }
  .offset3   { .offset(3); }
  .offset4   { .offset(4); }
  .offset5   { .offset(5); }
  .offset6   { .offset(6); }
  .offset7   { .offset(7); }
  .offset8   { .offset(8); }
  .offset9   { .offset(9); }
  .offset10  { .offset(10); }
  .offset11  { .offset(11); }
  .offset12  { .offset(12); }

}
*/