Tab, Shift-TabEnter/Spacearia-expanded="BOOLEAN"aria-controls="IDREF"role="region"aria-labelledby="IDREF"heading-tag property needs to be set in order for the accordion to fit into the outline of the page. If there is
no heading-tag property provided, it defaults to h2.dir global attribute in HTML changes the direction of text and other content within an element. It's most often used on the <html> tag to set the entire page's direction, which is crucial for supporting languages that are written from right to left (RTL), such as Arabic and Hebrew. For example, using <html dir="rtl"> makes the entire page display from right to left, adjusting the layout and text flow accordingly.rem is a best practice for achieving this, as they allow the text to scale uniformly based on the user's browser settings.