There is a trick for collapsible sidebars where you can use a checkbox and style the sidebar display conditionally based on the checkbox :checked pseudo-selecto

There is a trick for collapsible sidebars where you can use a checkbox and style the sidebar display conditionally based on the checkbox :checked pseudo-selector, AFAIK this is the only way to make this style of sidebar without JavaScript. [0][1][2] [0]: https://www.digitalocean.com/community/tutorials/css-collapsible https://www.digitalocean.com/community/tutorials/css-collaps... [1]: https://webdevtrick.com/css-sidebar-menu/ https://webdevtrick.com/css-sidebar-menu/ [2]: https://webdevtrick.com/demos/css-sideout-menu/ https://webdevtrick.com/demos/css-sideout-menu/