ionic-framework/ionic/components/text-input/text-input.scss

// Text Input
// --------------------------------------------------

$ion-input-focus-border-color:      #51a7e8 !default;
$ion-input-focus-box-shadow:        inset 0px 0px 8px 0px $ion-input-focus-border-color !default;

$inset-item-input-bg-color:         darken(#fff, 20%) !default;
$inset-item-input-input-bg-color:   $list-background-color !default;


ion-input {
  display: block;
}

.key-input ion-input {

  &.has-focus {
    border-color: $ion-input-focus-border-color;
    box-shadow: $ion-input-focus-box-shadow;
  }

  :focus {
    outline: none;
  }
}

.item.input {
  align-items: flex-start;
}

.item.input .text-input {
  flex: 1;
}

ion-input .text-input {
  pointer-events: none;
}

ion-input.has-focus .text-input {
  pointer-events: auto;
}

.item.input textarea {
  padding-top: 9px;
}

.item-input[inset] {
  background-color: $inset-item-input-bg-color;

  .text-input {
    background-color: $list-background-color;
  }
}