CSS 导入

导入外部样式表。

工作 jsBin

<!DOCTYPE html>
<html>  
  <head>
    <base href="https://polygit.org/polymer+:master/iron-data-table+Saulis+:master/components/">
    <link rel="import" href="polymer/polymer.html">
    
    <script src="webcomponentsjs/webcomponents-lite.min.js"></script>
   
    <link rel="import" href="iron-ajax/iron-ajax.html">
    <link rel="import" href="paper-button/paper-button.html">
    
    <link rel="import" href="iron-data-table/iron-data-table.html">
    <link rel="import" href="iron-data-table/default-styles.html">
  </head>
  <body>
    <dom-module id="x-foo">
      <template>
        <style>
        </style>
        <paper-button on-tap="msg">Click Me</paper-button>

        <iron-ajax auto
          url="https://saulis.github.io/iron-data-table/demo/users.json" 
          last-response="{{users}}"
          >
        </iron-ajax>
        <iron-data-table selection-enabled items="[[users.results]]">
          <data-table-column name="Picture" width="50px" flex="0">
            <template>
              <img src="[[item.user.picture.thumbnail]]">
            </template>
          </data-table-column>
          <data-table-column name="First Name">
            <template>[[item.user.name.first]]</template>
          </data-table-column>
          <data-table-column name="Last Name">
            <template>[[item.user.name.last]]</template>
          </data-table-column>
          <data-table-column name="Email">
            <template>[[item.user.email]]</template>
          </data-table-column>
        </iron-data-table>

      </template>
      <script>
        (function(){
          'use strict';
          Polymer({
            is: 'x-foo',
            msg: function() {
              console.log('This proves Polymer is working!');
            },
          });
        })();
      </script>
    </dom-module>
    <x-foo></x-foo>
  </body>
</html>