polymer_2.0.2/bower_components/paper-styles/element-styles/paper-item-styles.html

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<link rel="import" href="../../polymer/polymer.html">
<link rel="import" href="../color.html">
<link rel="import" href="../default-theme.html">
<link rel="import" href="../typography.html">

<!--
Material design: [Lists](https://www.google.com/design/spec/components/lists.html)

Shared styles for a native `button` to be used as an item in a `paper-listbox` element:

    <custom-style>
      <style is="custom-style" include="paper-item-styles"></style>
    </custom-style>

    <paper-listbox>
      <button class="paper-item" role="option">Inbox</button>
      <button class="paper-item" role="option">Starred</button>
      <button class="paper-item" role="option">Sent mail</button>
    </paper-listbox>

@group Paper Elements
@demo demo/index.html
-->

<dom-module id="paper-item-styles">
  <template>
    <style>
      :host, html {
        --paper-item: {
          display: block;
          position: relative;
          min-height: var(--paper-item-min-height, 48px);
          padding: 0px 16px;
          @apply --paper-font-subhead;
          border:none;
          outline: none;
          background: white;
          width: 100%;
          text-align: left;
        };
      }

      .paper-item {
        @apply --paper-item;
      }

      .paper-item[hidden] {
        display: none !important;
      }

      .paper-item.iron-selected {
        font-weight: var(--paper-item-selected-weight, bold);
        @apply --paper-item-selected;
      }

      .paper-item[disabled] {
        color: var(--paper-item-disabled-color, var(--disabled-text-color));
        @apply --paper-item-disabled;
      }

      .paper-item:focus {
        position: relative;
        outline: 0;
        @apply --paper-item-focused;
      }

      .paper-item:focus:before {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: currentColor;
        content: '';
        opacity: var(--dark-divider-opacity);
        pointer-events: none;
        @apply --paper-item-focused-before;
      }
    </style>
  </template>
</dom-module>