shared-styles.html

<!-- shared styles for all elements and index.html -->
<dom-module id="shared-styles">
  <template>
    <style>
      .page-title {
        @apply(--paper-font-display2);
      }

      @media (max-width: 600px) {
        .page-title {
          font-size: 24px!important;
        }
      }

      paper-toolbar {
        --paper-toolbar-background: #EE3268;
      }

      * {
        --default-primary-color: #EE3268;
      }

    </style>
    </style>
  </template>
</dom-module>