aria-hidden
aria-hidden="true". Controls that element should not be exposed to accessibility API. Cannot be reached with TAB key.
aria-label="open sidebar". Describes what the element is doing. What ever we assign to this aria label attribute, would be read outloud by the screen reader technology.
aria-expanded="false". Explains the default state of element
aria-controls="navbar". Explains what element it controls by assigning the elements ID as aria's value.
aria-current="page". This tells the screen readers that this is the current website.
Inert attribute removes the element from the accessibility tree, makes it untabbable, does not hide it visually