语音矩阵外边距改为内边距

src/components/Adult/preview/VoiceMatrix.vue

@@ -489,7 +489,7 @@ $select-color-brown-active: #a37557;
 .voice-matrix {
   height: 100%;
   width: 100%;
-  margin-bottom: 16px;
+  padding-bottom: 16px;
   color: #262626;
 
   &-audio {
@@ -838,7 +838,7 @@ $select-color-brown-active: #a37557;
 <style lang="scss" scoped>
 .NNPE-tableList-tr-last{
   .voice-matrix{
-    margin-bottom: 0;
+    padding-bottom: 0;
   }
 }
 </style>