Answer
The `tabindex` attribute controls whether an element can receive keyboard focus and its focus order. β’ It is written inside an elementβs opening tag. β’ The HTML Standard limits which elements may use it and which values are valid. β’ Browsers apply the attribute when they process the element or the resource it controls.
💡 Simple Example
<div tabindex="0">Focusable panel</div>
⚡ Quick Revision
Tabindex controls keyboard focus; use positive values carefully.