<md-tabs @change=${this.tabChanged} id="tabs">
<md-tab type="primary" id="photos-tab" aria-label="Photos" aria-controls="photos-panel">
Photos
</md-tab>
<md-tab type="primary" id="videos-tab" aria-label="Videos" aria-controls="videos-panel">
Videos
</md-tab>
<md-tab type="primary" id="music-tab" aria-label="Music" aria-controls="music-panel">
Music
</md-tab>
</md-tabs>