write css style 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: external style sheet
<link rel="stylesheet" type="text/css" href="mystyle.css">