margin: -1px 0 0 -1px;
        width: 101%;
      }
    </style>
    <span class="-off-screen">{{text}}</span>
    <video id="video" src$="{{src}}" hidden
           on-canplaythrough="show" on-mouseover="play"></video>
  </template>
  <script>
    (function () {
      'use strict';

      Polymer({
        is: 'card-video',

        properties: {

          /**
           * URL for video.
           */
          src: {
            type: String,
            value: null
          },

          /**
          