message: docs(cli):  improve nav title text size adjust
diff: @@ -39,9 +39,10 @@ export default {
  <style lang="less">
  .demo-nav {
  position: relative;
  + display: flex;
  + align-items: center;
  + justify-content: center;
  height: 56px;
  - line-height: 56px;
  - text-align: center;
  background-color: #fff;
  &__title {
  