github.com/lyeb/hugo@v0.47.1/docs/themes/gohugoioTheme/src/css/_no-js.css (about)

     1  .no-js .needs-js {
     2    opacity: 0
     3  }
     4  .js .needs-js {
     5    opacity: 1;
     6    transition: opacity .15s ease-in;
     7  }