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static/bootstrap/stylesheets/bootstrap/_forms.scss
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//
 
// Forms
 
// --------------------------------------------------
 

	
 

	
 
// Normalize non-controls
 
//
 
// Restyle and baseline non-control form elements.
 

	
 
fieldset {
 
  padding: 0;
 
  margin: 0;
 
  border: 0;
 
  // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
 
  // so we reset that to ensure it behaves more like a standard block element.
 
  // See https://github.com/twbs/bootstrap/issues/12359.
 
  min-width: 0;
 
}
 

	
 
legend {
 
  display: block;
 
  width: 100%;
 
  padding: 0;
 
  margin-bottom: $line-height-computed;
 
  font-size: ($font-size-base * 1.5);
 
  line-height: inherit;
 
  color: $legend-color;
 
  border: 0;
 
  border-bottom: 1px solid $legend-border-color;
 
}
 

	
 
label {
 
  display: inline-block;
 
  max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)
 
  margin-bottom: 5px;
 
  font-weight: bold;
 
}
 

	
 

	
 
// Normalize form controls
 
//
 
// While most of our form styles require extra classes, some basic normalization
 
// is required to ensure optimum display with or without those classes to better
 
// address browser inconsistencies.
 

	
 
// Override content-box in Normalize (* isn't specific enough)
 
input[type="search"] {
 
  @include box-sizing(border-box);
 
}
 

	
 
// Position radios and checkboxes better
 
input[type="radio"],
 
input[type="checkbox"] {
 
  margin: 4px 0 0;
 
  margin-top: 1px \9; // IE8-9
 
  line-height: normal;
 
}
 

	
 
input[type="file"] {
 
  display: block;
 
}
 

	
 
// Make range inputs behave like textual form controls
 
input[type="range"] {
 
  display: block;
 
  width: 100%;
 
}
 

	
 
// Make multiple select elements height not fixed
 
select[multiple],
 
select[size] {
 
  height: auto;
 
}
 

	
 
// Focus for file, radio, and checkbox
 
input[type="file"]:focus,
 
input[type="radio"]:focus,
 
input[type="checkbox"]:focus {
 
  @include tab-focus;
 
}
 

	
 
// Adjust output element
 
output {
 
  display: block;
 
  padding-top: ($padding-base-vertical + 1);
 
  font-size: $font-size-base;
 
  line-height: $line-height-base;
 
  color: $input-color;
 
}
 

	
 

	
 
// Common form controls
 
//
 
// Shared size and type resets for form controls. Apply `.form-control` to any
 
// of the following form controls:
 
//
 
// select
 
// textarea
 
// input[type="text"]
 
// input[type="password"]
 
// input[type="datetime"]
 
// input[type="datetime-local"]
 
// input[type="date"]
 
// input[type="month"]
 
// input[type="time"]
 
// input[type="week"]
 
// input[type="number"]
 
// input[type="email"]
 
// input[type="url"]
 
// input[type="search"]
 
// input[type="tel"]
 
// input[type="color"]
 

	
 
.form-control {
 
  display: block;
 
  width: 100%;
 
  height: $input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
 
  padding: $padding-base-vertical $padding-base-horizontal;
 
  font-size: $font-size-base;
 
  line-height: $line-height-base;
 
  color: $input-color;
 
  background-color: $input-bg;
 
  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
 
  border: 1px solid $input-border;
 
  border-radius: $input-border-radius; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS.
 
  @include box-shadow(inset 0 1px 1px rgba(0,0,0,.075));
 
  @include transition(border-color ease-in-out .15s, box-shadow ease-in-out .15s);
 

	
 
  // Customize the `:focus` state to imitate native WebKit styles.
 
  @include form-control-focus;
 

	
 
  // Placeholder
 
  @include placeholder;
 

	
 
  // Unstyle the caret on `<select>`s in IE10+.
 
  &::-ms-expand {
 
    border: 0;
 
    background-color: transparent;
 
  }
 

	
 
  // Disabled and read-only inputs
 
  //
 
  // HTML5 says that controls under a fieldset > legend:first-child won't be
 
  // disabled if the fieldset is disabled. Due to implementation difficulty, we
 
  // don't honor that edge case; we style them as disabled anyway.
 
  &[disabled],
 
  &[readonly],
 
  fieldset[disabled] & {
 
    background-color: $input-bg-disabled;
 
    opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655
 
  }
 

	
 
  &[disabled],
 
  fieldset[disabled] & {
 
    cursor: $cursor-disabled;
 
  }
 

	
 
  // [converter] extracted textarea& to textarea.form-control
 
}
 

	
 
// Reset height for `textarea`s
 
textarea.form-control {
 
  height: auto;
 
}
 

	
 

	
 
// Search inputs in iOS
 
//
 
// This overrides the extra rounded corners on search inputs in iOS so that our
 
// `.form-control` class can properly style them. Note that this cannot simply
 
// be added to `.form-control` as it's not specific enough. For details, see
 
// https://github.com/twbs/bootstrap/issues/11586.
 

	
 
input[type="search"] {
 
  -webkit-appearance: none;
 
}
 

	
 

	
 
// Special styles for iOS temporal inputs
 
//
 
// In Mobile Safari, setting `display: block` on temporal inputs causes the
 
// text within the input to become vertically misaligned. As a workaround, we
 
// set a pixel line-height that matches the given height of the input, but only
 
// for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
 
//
 
// Note that as of 9.3, iOS doesn't support `week`.
 

	
 
@media screen and (-webkit-min-device-pixel-ratio: 0) {
 
  input[type="date"],
 
  input[type="time"],
 
  input[type="datetime-local"],
 
  input[type="month"] {
 
    &.form-control {
 
      line-height: $input-height-base;
 
    }
 

	
 
    &.input-sm,
 
    .input-group-sm & {
 
      line-height: $input-height-small;
 
    }
 

	
 
    &.input-lg,
 
    .input-group-lg & {
 
      line-height: $input-height-large;
 
    }
 
  }
 
}
 

	
 

	
 
// Form groups
 
//
 
// Designed to help with the organization and spacing of vertical forms. For
 
// horizontal forms, use the predefined grid classes.
 

	
 
.form-group {
 
  margin-bottom: $form-group-margin-bottom;
 
}
 

	
 

	
 
// Checkboxes and radios
 
//
 
// Indent the labels to position radios/checkboxes as hanging controls.
 

	
 
.radio,
 
.checkbox {
 
  position: relative;
 
  display: block;
 
  margin-top: 10px;
 
  margin-bottom: 10px;
 

	
 
  label {
 
    min-height: $line-height-computed; // Ensure the input doesn't jump when there is no text
 
    padding-left: 20px;
 
    margin-bottom: 0;
 
    font-weight: normal;
 
    cursor: pointer;
 
  }
 
}
 
.radio input[type="radio"],
 
.radio-inline input[type="radio"],
 
.checkbox input[type="checkbox"],
 
.checkbox-inline input[type="checkbox"] {
 
  position: absolute;
 
  margin-left: -20px;
 
  margin-top: 4px \9;
 
}
 

	
 
.radio + .radio,
 
.checkbox + .checkbox {
 
  margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
 
}
 

	
 
// Radios and checkboxes on same line
 
.radio-inline,
 
.checkbox-inline {
 
  position: relative;
 
  display: inline-block;
 
  padding-left: 20px;
 
  margin-bottom: 0;
 
  vertical-align: middle;
 
  font-weight: normal;
 
  cursor: pointer;
 
}
 
.radio-inline + .radio-inline,
 
.checkbox-inline + .checkbox-inline {
 
  margin-top: 0;
 
  margin-left: 10px; // space out consecutive inline controls
 
}
 

	
 
// Apply same disabled cursor tweak as for inputs
 
// Some special care is needed because <label>s don't inherit their parent's `cursor`.
 
//
 
// Note: Neither radios nor checkboxes can be readonly.
 
input[type="radio"],
 
input[type="checkbox"] {
 
  &[disabled],
 
  &.disabled,
 
  fieldset[disabled] & {
 
    cursor: $cursor-disabled;
 
  }
 
}
 
// These classes are used directly on <label>s
 
.radio-inline,
 
.checkbox-inline {
 
  &.disabled,
 
  fieldset[disabled] & {
 
    cursor: $cursor-disabled;
 
  }
 
}
 
// These classes are used on elements with <label> descendants
 
.radio,
 
.checkbox {
 
  &.disabled,
 
  fieldset[disabled] & {
 
    label {
 
      cursor: $cursor-disabled;
 
    }
 
  }
 
}
 

	
 

	
 
// Static form control text
 
//
 
// Apply class to a `p` element to make any string of text align with labels in
 
// a horizontal form layout.
 

	
 
.form-control-static {
 
  // Size it appropriately next to real form controls
 
  padding-top: ($padding-base-vertical + 1);
 
  padding-bottom: ($padding-base-vertical + 1);
 
  // Remove default margin from `p`
 
  margin-bottom: 0;
 
  min-height: ($line-height-computed + $font-size-base);
 

	
 
  &.input-lg,
 
  &.input-sm {
 
    padding-left: 0;
 
    padding-right: 0;
 
  }
 
}
 

	
 

	
 
// Form control sizing
 
//
 
// Build on `.form-control` with modifier classes to decrease or increase the
 
// height and font-size of form controls.
 
//
 
// The `.form-group-* form-control` variations are sadly duplicated to avoid the
 
// issue documented in https://github.com/twbs/bootstrap/issues/15074.
 

	
 
@include input-size('.input-sm', $input-height-small, $padding-small-vertical, $padding-small-horizontal, $font-size-small, $line-height-small, $input-border-radius-small);
 
.form-group-sm {
 
  .form-control {
 
    height: $input-height-small;
 
    padding: $padding-small-vertical $padding-small-horizontal;
 
    font-size: $font-size-small;
 
    line-height: $line-height-small;
 
    border-radius: $input-border-radius-small;
 
  }
 
  select.form-control {
 
    height: $input-height-small;
 
    line-height: $input-height-small;
 
  }
 
  textarea.form-control,
 
  select[multiple].form-control {
 
    height: auto;
 
  }
 
  .form-control-static {
 
    height: $input-height-small;
 
    min-height: ($line-height-computed + $font-size-small);
 
    padding: ($padding-small-vertical + 1) $padding-small-horizontal;
 
    font-size: $font-size-small;
 
    line-height: $line-height-small;
 
  }
 
}
 

	
 
@include input-size('.input-lg', $input-height-large, $padding-large-vertical, $padding-large-horizontal, $font-size-large, $line-height-large, $input-border-radius-large);
 
.form-group-lg {
 
  .form-control {
 
    height: $input-height-large;
 
    padding: $padding-large-vertical $padding-large-horizontal;
 
    font-size: $font-size-large;
 
    line-height: $line-height-large;
 
    border-radius: $input-border-radius-large;
 
  }
 
  select.form-control {
 
    height: $input-height-large;
 
    line-height: $input-height-large;
 
  }
 
  textarea.form-control,
 
  select[multiple].form-control {
 
    height: auto;
 
  }
 
  .form-control-static {
 
    height: $input-height-large;
 
    min-height: ($line-height-computed + $font-size-large);
 
    padding: ($padding-large-vertical + 1) $padding-large-horizontal;
 
    font-size: $font-size-large;
 
    line-height: $line-height-large;
 
  }
 
}
 

	
 

	
 
// Form control feedback states
 
//
 
// Apply contextual and semantic states to individual form controls.
 

	
 
.has-feedback {
 
  // Enable absolute positioning
 
  position: relative;
 

	
 
  // Ensure icons don't overlap text
 
  .form-control {
 
    padding-right: ($input-height-base * 1.25);
 
  }
 
}
 
// Feedback icon (requires .glyphicon classes)
 
.form-control-feedback {
 
  position: absolute;
 
  top: 0;
 
  right: 0;
 
  z-index: 2; // Ensure icon is above input groups
 
  display: block;
 
  width: $input-height-base;
 
  height: $input-height-base;
 
  line-height: $input-height-base;
 
  text-align: center;
 
  pointer-events: none;
 
}
 
.input-lg + .form-control-feedback,
 
.input-group-lg + .form-control-feedback,
 
.form-group-lg .form-control + .form-control-feedback {
 
  width: $input-height-large;
 
  height: $input-height-large;
 
  line-height: $input-height-large;
 
}
 
.input-sm + .form-control-feedback,
 
.input-group-sm + .form-control-feedback,
 
.form-group-sm .form-control + .form-control-feedback {
 
  width: $input-height-small;
 
  height: $input-height-small;
 
  line-height: $input-height-small;
 
}
 

	
 
// Feedback states
 
.has-success {
 
  @include form-control-validation($state-success-text, $state-success-text, $state-success-bg);
 
}
 
.has-warning {
 
  @include form-control-validation($state-warning-text, $state-warning-text, $state-warning-bg);
 
}
 
.has-error {
 
  @include form-control-validation($state-danger-text, $state-danger-text, $state-danger-bg);
 
}
 

	
 
// Reposition feedback icon if input has visible label above
 
.has-feedback label {
 

	
 
  & ~ .form-control-feedback {
 
    top: ($line-height-computed + 5); // Height of the `label` and its margin
 
  }
 
  &.sr-only ~ .form-control-feedback {
 
    top: 0;
 
  }
 
}
 

	
 

	
 
// Help text
 
//
 
// Apply to any element you wish to create light text for placement immediately
 
// below a form control. Use for general help, formatting, or instructional text.
 

	
 
.help-block {
 
  display: block; // account for any element using help-block
 
  margin-top: 5px;
 
  margin-bottom: 10px;
 
  color: lighten($text-color, 25%); // lighten the text some for contrast
 
}
 

	
 

	
 
// Inline forms
 
//
 
// Make forms appear inline(-block) by adding the `.form-inline` class. Inline
 
// forms begin stacked on extra small (mobile) devices and then go inline when
 
// viewports reach <768px.
 
//
 
// Requires wrapping inputs and labels with `.form-group` for proper display of
 
// default HTML form controls and our custom form controls (e.g., input groups).
 
//
 
// Heads up! This is mixin-ed into `.navbar-form` in navbars.less.
 

	
 
// [converter] extracted from `.form-inline` for libsass compatibility
 
@mixin form-inline {
 

	
 
  // Kick in the inline
 
  @media (min-width: $screen-sm-min) {
 
    // Inline-block all the things for "inline"
 
    .form-group {
 
      display: inline-block;
 
      margin-bottom: 0;
 
      vertical-align: middle;
 
    }
 

	
 
    // In navbar-form, allow folks to *not* use `.form-group`
 
    .form-control {
 
      display: inline-block;
 
      width: auto; // Prevent labels from stacking above inputs in `.form-group`
 
      vertical-align: middle;
 
    }
 

	
 
    // Make static controls behave like regular ones
 
    .form-control-static {
 
      display: inline-block;
 
    }
 

	
 
    .input-group {
 
      display: inline-table;
 
      vertical-align: middle;
 

	
 
      .input-group-addon,
 
      .input-group-btn,
 
      .form-control {
 
        width: auto;
 
      }
 
    }
 

	
 
    // Input groups need that 100% width though
 
    .input-group > .form-control {
 
      width: 100%;
 
    }
 

	
 
    .control-label {
 
      margin-bottom: 0;
 
      vertical-align: middle;
 
    }
 

	
 
    // Remove default margin on radios/checkboxes that were used for stacking, and
 
    // then undo the floating of radios and checkboxes to match.
 
    .radio,
 
    .checkbox {
 
      display: inline-block;
 
      margin-top: 0;
 
      margin-bottom: 0;
 
      vertical-align: middle;
 

	
 
      label {
 
        padding-left: 0;
 
      }
 
    }
 
    .radio input[type="radio"],
 
    .checkbox input[type="checkbox"] {
 
      position: relative;
 
      margin-left: 0;
 
    }
 

	
 
    // Re-override the feedback icon.
 
    .has-feedback .form-control-feedback {
 
      top: 0;
 
    }
 
  }
 
}
 
// [converter] extracted as `@mixin form-inline` for libsass compatibility
 
.form-inline {
 
  @include form-inline;
 
}
 

	
 

	
 

	
 
// Horizontal forms
 
//
 
// Horizontal forms are built on grid classes and allow you to create forms with
 
// labels on the left and inputs on the right.
 

	
 
.form-horizontal {
 

	
 
  // Consistent vertical alignment of radios and checkboxes
 
  //
 
  // Labels also get some reset styles, but that is scoped to a media query below.
 
  .radio,
 
  .checkbox,
 
  .radio-inline,
 
  .checkbox-inline {
 
    margin-top: 0;
 
    margin-bottom: 0;
 
    padding-top: ($padding-base-vertical + 1); // Default padding plus a border
 
  }
 
  // Account for padding we're adding to ensure the alignment and of help text
 
  // and other content below items
 
  .radio,
 
  .checkbox {
 
    min-height: ($line-height-computed + ($padding-base-vertical + 1));
 
  }
 

	
 
  // Make form groups behave like rows
 
  .form-group {
 
    @include make-row;
 
  }
 

	
 
  // Reset spacing and right align labels, but scope to media queries so that
 
  // labels on narrow viewports stack the same as a default form example.
 
  @media (min-width: $screen-sm-min) {
 
    .control-label {
 
      text-align: right;
 
      margin-bottom: 0;
 
      padding-top: ($padding-base-vertical + 1); // Default padding plus a border
 
    }
 
  }
 

	
 
  // Validation states
 
  //
 
  // Reposition the icon because it's now within a grid column and columns have
 
  // `position: relative;` on them. Also accounts for the grid gutter padding.
 
  .has-feedback .form-control-feedback {
 
    right: floor(($grid-gutter-width / 2));
 
  }
 

	
 
  // Form group sizes
 
  //
 
  // Quick utility class for applying `.input-lg` and `.input-sm` styles to the
 
  // inputs and labels within a `.form-group`.
 
  .form-group-lg {
 
    @media (min-width: $screen-sm-min) {
 
      .control-label {
 
        padding-top: ($padding-large-vertical + 1);
 
        font-size: $font-size-large;
 
      }
 
    }
 
  }
 
  .form-group-sm {
 
    @media (min-width: $screen-sm-min) {
 
      .control-label {
 
        padding-top: ($padding-small-vertical + 1);
 
        font-size: $font-size-small;
 
      }
 
    }
 
  }
 
}