优化演示

docs/css/common.css

@@ -31,12 +31,16 @@ html, body {
   box-sizing: border-box;
 }
 
-.part-left .controls .logo {
-  height: 30px;
-  line-height: 30px;
+.part-left .controls .left {
+  display: flex;
+  align-items: center;
   flex: 1;
 }
 
+.part-left .controls .left .logo {
+  padding-right: 30px;
+}
+
 .part-left .controls .run {
   height: 30px;
   width: 100px;
@@ -64,6 +68,10 @@ html, body {
   border-bottom: 1px solid #ddd;
 }
 
+.part-right .video-wrap.dark {
+  background: #000;
+}
+
 .part-right .video-wrap .artplayer-app {
     width: 90%;
     height: 60%;