Do you mean menus that hide off-screen and then slide over to fill the screen once a menu icon is touched? If so, I dducked "css only slide out menu" and this

Do you mean menus that hide off-screen and then slide over to fill the screen once a menu icon is touched? If so, I dducked "css only slide out menu" and this was the second result: https://1stwebdesigner.com/pure-css-navigation-menus/ https://1stwebdesigner.com/pure-css-navigation-menus/