how to specify path in html file code example

Example 1: path in html

/   = Root directory
   .   = This location
   ..  = Up a directory
   ./  = Current directory
   ../ = Parent of current directory
   ../../ = Two directories backwards

Example 2: html relative path

<!--The ./ means the contact.html file is in the same file 
as the file that is linked to it-->
<a href="./contact.html">Contact</a>