版本：0.9.4
- https://cdn.bootcdn.net/ajax/libs/bulma/0.9.4/css/bulma-rtl.css
- https://cdn.bootcdn.net/ajax/libs/bulma/0.9.4/css/bulma-rtl.min.css
- https://cdn.bootcdn.net/ajax/libs/bulma/0.9.4/css/bulma.css
- https://cdn.bootcdn.net/ajax/libs/bulma/0.9.4/css/bulma.min.css