how to connect css file with html with different folder code example

Example 1: add css file to html

/*
Adding css file into html document
*/

<link rel="stylesheet" type="text/css" href="yourstylesheetname.css">  /* add this line into head tag of the file with change in file name. */

/*
I hope it will help you.
Namaste
*/

Example 2: how to link css to html in different folder

<link rel="stylesheet" href="../css/Style_page_1.css">