css/modules/primer-forms/lib/form-control.scss

// Needs refactoring
// stylelint-disable selector-no-qualifying-type, selector-max-compound-selectors
// stylelint-disable selector-max-type
// Base form controls
//
// Overrides for common inputs for easier styling.

fieldset {
  padding: 0;
  margin: 0;
  border: 0;
}

label {
  font-weight: $font-weight-bold;
}

.form-control,
.form-select {
  min-height: 34px;
  padding: 6px $spacer-2;
  font-size: $body-font-size;
  line-height: 20px;
  color: $text-gray-dark;
  vertical-align: middle;
  background-color: $bg-white;
  background-repeat: no-repeat; // Repeat and position set for form states (success, error, etc)
  background-position: right 8px center; // For form validation. This keeps images 8px from right and centered vertically.
  border: 1px solid $border-gray-dark;
  border-radius: 3px;
  outline: none;
  box-shadow: $form-control-shadow;

  &.focus,
  &:focus {
    border-color: $blue-400;
    outline: none;
    box-shadow: $form-control-shadow, $btn-input-focus-shadow;
  }
}

// Inputs with contrast for easy light gray backgrounds against white.
.input-contrast {
  background-color: $bg-gray-light;

  &:focus { background-color: $bg-white; }
}

// Custom styling for HTML5 validation bubbles (WebKit only)
::placeholder {
  color: $text-gray-light;
}

// Mini inputs, to match .minibutton
.input-sm {
  min-height: 28px;
  padding-top: 3px;
  padding-bottom: 3px;
  font-size: $font-size-small;
  line-height: 20px;
}

// Large inputs
.input-lg {
  padding: $spacer-1 10px;
  font-size: 16px;
}

// Full-width inputs
.input-block {
  display: block;
  width: 100%;
}

// Inputs with monospace text
.input-monospace {
  font-family: $mono-font;
}

// Hide the icon that tries to autofill contact info in webkit
.input-hide-webkit-autofill {
  &::-webkit-contacts-auto-fill-button {
    position: absolute;
    right: 0;
    display: none !important;
    pointer-events: none;
    visibility: hidden;
  }
}

// Checkboxes and Radiobuttons
//
// For checkboxes and radio button selections.
.form-checkbox {
  padding-left: 20px;
  margin: 15px 0;
  vertical-align: middle;

  label {
    em.highlight {
      position: relative;
      left: -$spacer-1;
      padding: 2px $spacer-1;
      font-style: normal;
      background: $yellow-100;
      border-radius: 3px;
    }
  }

  input[type=checkbox],
  input[type=radio] {
    float: left;
    margin: 5px 0 0 -20px;
    vertical-align: middle;
  }

  .note {
    display: block;
    margin: 0;
    font-size: 12px;
    font-weight: normal;
    color: $gray-600;
  }
}

.form-checkbox-details {
  display: none;
}

.form-checkbox-details-trigger {
  &:checked {
    ~ * .form-checkbox-details, // child of sibling
    ~ .form-checkbox-details { // or sibling
      display: block;
    }
  }
}

// Field groups
//
// Wrap field groups in `<div.hfields>` to lay them out horizontally - great for
// the top of pages with autosave.
.hfields {
  margin: 15px 0;
  @include clearfix;

  .form-group {
    float: left;
    margin: 0 30px 0 0;

    dt {
      label {
        display: inline-block;
        margin: 5px 0 0;
        color: $gray-600;
      }

      img {
        position: relative;
        top: -2px;
      }
    }
  }

  .btn {
    float: left;
    margin: 28px 25px 0 -20px;
  }

  .form-select { margin-top: 5px; }
}

// Hide the up/down buttons in <input type="number"> in the login form, the
// input is used for two-factor auth codes, type="number" makes it more usable
// on phones
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

// Input groups

.form-actions {
  @include clearfix;

  .btn {
    float: right;

    + .btn {
      margin-right: 5px;
    }
  }
}

.form-warning {
  padding: $spacer-2 10px;
  margin: 10px 0;
  font-size: 14px;
  color: $yellow-900;
  background: $yellow-100;
  border: 1px solid $border-yellow;
  border-radius: 3px;

  p {
    margin: 0;
    line-height: 1.5;
  }

  a { font-weight: $font-weight-bold; }
}