Vuepress use the theme @vuepress/theme-default, click the drop-down title, then click elsewhere on the page, the drop-down list always show.

[liulinboyi]

Vuepress use the theme @vuepress/theme-default, click the drop-down title, then click elsewhere on the page, the drop-down list always show.
I found this in vuejs/docs-next, can't fix it on vuejs/docs-next,
The issue is vuejs/docs#244

[kefranabg]

This will be fixed with #2365