add poster for video

themes/tajian/views/site/tajian.php

@@ -23,6 +23,7 @@ $loginBackUrl = !empty($viewData['loginedUser']['username']) ? "/{$viewData['log
                             创建聚宝盆
                         </a>
                     </div>
+                    <?php /*
                     <div class="control">
                         <a class="button button-block button-shadow" href="/site/login/?go=<?=$loginBackUrl?>">
                             <img class="btn_icon" src="/img/share.png" alt="分享给朋友">
@@ -35,6 +36,7 @@ $loginBackUrl = !empty($viewData['loginedUser']['username']) ? "/{$viewData['log
                             搭建视频站
                         </a>
                     </div>
+                    */ ?>
                 </div>
                 <div class="hero-browser">
                     <div class="bubble-3 is-revealing">
@@ -113,7 +115,9 @@ $loginBackUrl = !empty($viewData['loginedUser']['username']) ? "/{$viewData['log
                             </g>
                         </svg>
                         <div class="hero-footer">
-                            <video src="https://static.jialuoma.cn/mp4/machete/add_video_share_url.mp4" style="width:100%;height:100%" controls>
+                            <video
+                                poster="/img/bg/learning_by_watching_500.jpg"
+                                src="https://static.jialuoma.cn/mp4/machete/add_video_share_url.mp4" style="width:100%;height:100%" controls>
                             </video>
                         </div>
                     </div>