sogo/UI/WebServerResources/scss/components/input/input.scss

$input-container-padding: 2px !default;

$input-label-default-offset: 24px !default;
$input-label-default-scale: 1.0 !default;
$input-label-float-offset: 4px !default;
$input-label-float-scale: 0.75 !default;

$input-border-width-default: 1px !default;
$input-border-width-focused: 2px !default;
$input-line-height: 26px !default;
$input-padding-top: 2px !default;

md-input-container {
  display: flex;
  position: relative;
  flex-direction: column;
  padding: $input-container-padding;

  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"] {
    /* remove default appearance from all input/textarea */
    -moz-appearance: none;
    -webkit-appearance: none;
  }
  textarea {
    resize: none;
    overflow: hidden;
  }

  label {
    order: 1;
    pointer-events: none;
    -webkit-font-smoothing: antialiased;
    z-index: 1;
    transform: translate3d(0, $input-label-default-offset, 0) scale($input-label-default-scale);
    transform-origin: left top;
    transition: all $swift-ease-out-timing-function 0.2s;
  }

  /* 
   * The .md-input class is added to the input/textarea 
   */
  .md-input {
    flex: 1;
    order: 2;
    display: block;

    background: none;
    padding-top: $input-padding-top;
    padding-bottom: $input-border-width-focused - $input-border-width-default;
    border-width: 0 0 $input-border-width-default 0;
    line-height: $input-line-height;
    -ms-flex-preferred-size: $input-line-height; //IE fix

    &:focus {
      outline: none;
    }
  }

  &.md-input-focused,
  &.md-input-has-value {
    label {
      transform: translate3d(0,$input-label-float-offset,0) scale($input-label-float-scale);
    }
  }
  &.md-input-focused {
    .md-input {
      padding-bottom: 0px; // Increase border width by 1px, decrease padding by 1
      border-width: 0 0 $input-border-width-focused 0;
    }
  }

  .md-input[disabled] {
    background-position: 0 bottom;
    // This background-size is coordinated with a linear-gradient set in input-theme.scss 
    // to create a dotted line under the input. 
    background-size: 3px 1px;
    background-repeat: repeat-x;
  }
}
md-input-container .bgroup {
  display: block;
}
.bgroup b {
  left-margin: -1.25em;
}

.PseudoField input {
  flex: 1;
  order: 2;
  display: block;

  background: none;
  padding-top: $input-padding-top;
  padding-bottom: 0;
  border-width: 0 0 $input-border-width-default 0;
  line-height: $input-line-height;
  -ms-flex-preferred-size: $input-line-height; //IE fix

  &:focus {
    outline: none;
  }
}