H1 Header ========= H2 Header --------- H1 Header, underline could be of any length = H2 Header, underline could be of any length - H1 Header, underline could be of any length ================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================= H2 Header, underline could be of any length --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- This is not an header because the underline must begin at the beginnning of the line = This is not an header because the underline must begin at the beginnning of the line .=