message: style(content): use body as container
diff: @@ -16,6 +16,8 @@ html {
  }
  body {
  + display: flex;
  + flex-direction: column;
  overflow: hidden;
  height: 100%;
  margin: 0;
  @@ -25,13 +27,6 @@ body {
  font-family: "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "Hiragino Sans GB W3", "Microsoft YaHei UI", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  }
  -.panel-Root {
  - display: flex;
  - flex-direction: column;
  - overflow: hidden;
  - height: 100%;
  -}
  -
  .panel-DictContainer {
  flex: 1;
  overflow-x: hidden;
  